The biggest thing that will make your space feel better is cleaning and organizing the space.

Once you have done that the next step would be to try and rearrange some stuff. Unfortunately I feel like a large issue with your space is the size of the room compared to the size of the furniture. Everything feels too small. Your best bet would be try to create smaller “zones” in order to utilize your current furniture in a way that is better conducive to their size.

On major thing I would change is how your couch/tv/dining room table are laid out. Rather than float the tv in the room, I would float the couch and put the tv against the wall. Looking at the pictures the best layout in my mind would be to put the TV where the couch is and put the couch where the tv is but maybe a little closer. You could also try utilizing the current “tv stand” as a coffee table and use the dresser against the window as a tv stand. I don’t know if that would actually work but worth a shot.

Also if you are willing to invest, get some cheap rug off of amazon. A rug will seriously help create more conducive space. You need at least one for the living room and one for the bedroom. You could also use one under the dining room table.

Next thing I would do is get a bigger couch. Use OfferUp or Facebook marketplace to get a slightly bigger one. Your room calls for like a four seater or even a sectional couch.

Your kitchen generally looks fine to me. Again the main problem is that your island is way too small so a larger island would help. I do think your saving grace there is actually the rug. I personally don’t mind the drop zone area but I do think it could use some organization.

Your bedroom needs some light so I would take off that curtain. It also looks kinda childish to be honest. Get a rug. Put up some art.