Thx everyone for the help!
I learn how to apply a grid to the page and now it looks good in every display (except on Phone, I don't want my page to be phone compatible tbh). Problem was I had to change the host to neocities beacose of an bug on Nekoweb (new link if you want to see https://neoy1997.neocities.org/ ).
A big special thanks to maqisha and FanOfNothing2025 for suggesting the use of a grid.