Is there anyway how I can improve my building? Like tips, videos or something that can help me?
The best way to get better at building, in my opinion, is just building. The more you build, the more things you learn; new designs, more efficient brick placement, your strengths and weaknesses, etc. Also, looking at and saving builds you think are cool is a good idea. A lot of the stuff I build is a mixture of small things I have picked up from builds I've seen, as well as things I've taught myself on the way. I suggest you take pictures of things you think look really good or things you think are built well (efficiently or intelligently).
I do not suggest tutorials, videos or anything of that sort because most of them are that person's build style or that person's opinion on how to build and you end up just trying to copy them or they limit you to one approach to building.
Nobody is automatically amazing at building; it's a learned skill. You just have to think you can do it. The worst thing you can do is tell yourself that you can't.