I've heard a lot about Proxmox and I always thought it was some kind of VPS, so I can selfhost it for myself?
And another problem that I had with my previous selfhosting attempts is that I didn't really know how to solve my problems, I could run the script and set up my domain, but when it comes to solving some problem I really couldn't because or there was little specific documentation of my specific problem.
For example, I remember having selfhosted Nextcloud and when I wanted to enable ffmpeg so that my videos had a miniature I found instructions on how to do it but with different selfhosting methods.