Just a lot on my mind

It's been a rough couple of weeks so far I'm not gonna lie, not enough to push me to the brink of any suicidal thoughts but enough to just ruin all my ambitions and motivation in life. I'm only 21 and at this very moment I just feel like I'm going through so many different types of grief it feels like it's too much to bear. To start off my last grandparent from both sides of the family was finally put to rest after battling cancer for years just two days ago and of course the whole family was and is still pretty distraught, I've already made amends on the situation so it's not something that keeps me up at night but In the back of my mind I feel like I'm still coping at the fact my last grandparent just died which'll probably turn me into an emotional mess some point soon. The other problem I'm feeling is more or less just something that people my age usually go through which is falling in love, and right now I say it's a problem because we're so far away from each other so whenever we're apart It's like a withdrawal you can say, we're pretty new into the relationship (3 going on 4 months) which is why I feel this way right now but it just breaks my heart in a new way I can't really understand yet. This is my first moment experiencing "young love" and it hurts man, I'm sure I'll get better at this with time. And lastly financial troubles, for the last 3 years I've been investing in my dad's construction for his latest house he's bought with the deal being 'When this house is sold I'll either give every penny back or we can use the money you handed me for a new car'. Honestly I really need the car since I work 40 minutes from my job so I went with that but this whole process of patience is literally killing me. I've invested a little over 35k over the last 3 years by myself and Everytime I ask about the house it seems no progress has been made so I'm kinda at a loss weather I continue giving money because he's my dad or just burn the bridge and stop helping entirely and just cut my losses. I'm not sure what I want people to say when they read what I'm writing, I feel like I just want someone to listen. It's a lot and the only reason I'm mentioning all 3 is because they're all really happening right now at the same time. I'm sure others are dealing with alot worse so I probably sound like I'm just complaining but I just feel like writing this down helps a bit so why not post it too.