Hello everyone, i want to start off by saying that what im going to say might sound like paranoia/overkill, and thats fair. 

So i recently got into mtg and bought my first precon. These are the only cards i own, i bought outer sleeves (dragon shield matte) for them and when the precon arrived, i put on some throw away gloves and sleeved the deck. A couple of days ago i had my first commander night with friends. I put my commander in the deck, like sticking out of the side (picture, just imagine a whole deck) like i see some people on yt do. Then during the night i bottom scryed, and apparently while picking up my deck with the commander in there i slighly bent my commander. My friend said:”stop” and i just picked the card up and bent it back which looked fine. No crease or whatever. When i got home i deciced that i want to try and flatten it, because when looking at it from the top you can see a very very small. This did not really change much. I now want to double sleeve my deck and now after this long story i have these questions:

Will double sleeving keep the cards straigher then single sleeving and should i clean the cards a bit, since some dust can go into the top of the current sleeves, before putting them into the perfect fits?

Why are my cards sorta bending like the picture of the booklet i included (off course way less)?I only had them for a week or two and then have been sitting in my deckbox exactly like the picture. Will double sleeving also prevent this? Is the way i put my deckbox (commander and other foils are top) right? 

The pictures i included are not as good as my eyes, i could not really get the camera to focus, but the picture of my deck inside the box shows that the sleeves is slighly more open then the rest, and yes i checked this without the other cards having weight on them, still the commander cards sleeve is wider. I also included a picture of my sleeves. 

I can understand how some of you may think why stress about it, and to be honest, i do to, but still i would like to keep these expensive as cards to be as mint as possible while playing with them. 

Thanks in advance for taking time out of your day to respond! 

First cards