Concerned about the relationship I think I am in?

I have been dating a girl for 6 to 8 months and the relationship appears to be promising. There are signs that the two of us are appearing to being cohabitated though as the relationship has continued there are a number of things that the both of us have concerns about in the relationship though such as do we get along, do we like each other as individuals and people, and are there signs the relationship is going to show that we are really making the progress where the relationship counts in terms of us having something progress. It is just every now and then when the two of us talk the relationship does seem to be aprapoe in terms of the relationship being something I can definitively say is something we should consider of value, and not a relationship of complete ignorance. It may be the relationship has time to develop, and we have time to wonder and swirl about these quandaries though as the relationship has continued it seems like the more we poke at certain thoughts within the relationship the kind of not better they get. It is often like we are going down instead of up in terms of the relationship and there are signs we may not be finding much to connect on. It would be great to let her off though often times it is troublesome, troubling, and virtually impossible to let her off for the glaringly obvious in the relationship, the parts where she maybe is too comfortable, or not comfortable enough talking about. We kind of don't reach a conclusive end to things on where things are supposed to be and the definition of things that can make the relationship acceptable. I really am considering throwing in the towel in terms of the relationship as I have done numerous times before, though somehow she has a way of planting things in the relationship and finding a course of action that may make things unsuitable to settle out. I am often concerned about the relationship and if this really does appear to be correct. I mean somewhere on paper it should be correct, the parts that we struggle with, though somehow we aren't reaching a definitive decision if this really is in fact the relationship is going to work for us. I'm tempted to just hold any misjudements, confirmed biases, and false allegations against her that could or would otherwise contribute to her being lesser than in the relationship, and maybe not a good use or judgement of my time in terms of where it should be spent, in terms of her and I making it. It just feels wrong to me to forget about things, or let things off, or say they never existed. It is possible as the relationship continues there are a number of things we could address on why many of our problems at this time should not be problems, though as the relationship continues it kind of seems like an ever present thought that we aren't letting go. That we aren't separating from. The idea of the relationship could be something we are both still trying to piece together, a basic idea basically saying something along the lines of "is she more than this" or "it kind of seems like things weren't really wrapped up here, care to elaborate" though there doesn't appear to be a tentative response. It kind of seems like the relationship is only meant to go downwards. I may be missing the main idea on things on why this should work out positively or hold her in high regards. I may be missing the main point in this area. She could just be a laxidasical person. She could be careless, though I am personally hearing a very caring story as to why things shouldn't, couldn't, and may not be. It may be the relationship and person is ruined for ever based on this sole fact alone, though then what do you do with the person? I personally appear to have a hard time of letting things go at this point as it seems like an ever present subject, and though I have heard similar stories, this one appears to be a subject that is kind of ruining things. I am not really sure what the pieces of the relationship I am picking up are and putting back together, or what the relationship may become from this where things can be suitable. She may just be good at ruining things, which doesn't leave much left to build on I will be honest. Maybe that is how it is supposed to be. It may be as we consider separation, keeping her sequestered is a main thought, this is something I have shared with her before to which she hasn't had much concern about in the relationship. I am still trying to make it an idea to separate from things personally though it may be she isn't presenting much evidence to why this could work for us. It is possible I just let things go and focus on the important, though if I catch her going into things what can I do? I don't know if this personality type is completely healthy if this may be the story I am looking at. I just am concerned for my mental health at this time as I hear things unfold. It is possible the relationship isn't all it is cracked up to be, and this may be the story I am really looking at, though it isn't clear what to do with that at this time in the relationship or if just letting things go is a good idea. It sounds like there needs to be someone who gets reprimanded, though I personally don't think I am the right person for the job, in fact I know I am not. It shouldn't come back to me. Any information as to the correct thing to do and idea to approach such a conversation is appreciated. It just seems incorrect at this time to really make a clear idea of why the relationship should be dismissed in terms of our time together and the conversations we have had. Maybe we aren't good or meant for each other at the end of this. That would be something to take note of early, though now we are later on. I am not sure what to do with this time. It isn't necissarily the biggest investment, though by now it appears to be a present subject (the investment to just forget or not care about things). I appear to be concerned about this here, though maybe it isn't right. It sounds like it isn't to be honest. We may be through here.