Most of the young men I know still need adult supervision. I was one of these men. My first apartment was a 300 square foot studio. I had a mattress on the floor with one blanket and one pillow. A TV on the floor leaning against the wall. And my table was one of those giant wooden spools. I was 19. It was fine.
Now, this is the most important part. The older you get, the more disappointing it is to anyone you bring back to your place. It doesn’t matter how attractive you are or how great your personality is. Well-adjusted adults aren’t going to have sex with you on a floor mattress. Get your shit together.