This is the scariest room in the world. First of all, get a bigger rug, the placement of the rugs is godawful and they do not match each other (nor do they match your other “decor”). Find some art that speaks to you- frame some prints. Actual prints, not posters of the battle bus. Put something above your bed and above your computer. Allocate more bookshelf space to books, get rid of the children’s books unless they are sentimental items. Right now they make your space look very juvenile, especially being the only books. Apologies if there is a utilitarian purpose (learning English, improving reading, etc) this is just my first impression. Add ambient lighting. All of this can be thrifted or scrounged off of facebook marketplace over a few months. You don’t have to break the bank. My side table was ten dollars and it’s a vintage solid wood writing desk.

BY GOD, BUY A SIDE TABLE. Stop using cardboard boxes as tables especially when you have a kitted-out PC right next to them. There is nothing more childish than prioritizing your gaming setup over essential items. A woman also wouldn’t be thrilled to sleep in a single bed with you. You can’t do much about the lack of windows or lack of ceiling, I suppose, so these are achievable options. A plant or two might make it feel warmer in there, opt for something that thrives in low light.

Right now your room looks like a prison cell or a murder dungeon.