Selfhosted

First off, don't expose anything that doesn't need exposed. If your the only one using it you could use a VPN or ssh.

Second off, make sure you isolate everything with firewalls. Your reverse proxy should only have access to each service and each service should only have access to the reverse proxy. You should also block non essential ports.

For the services themselves, make sure you use strong passwords and keep them updated. For docker you can use watchtower to automatically pull and deploy software.

My advice: only forward ports 8080 and 443, then make sure that you have fail2ban or crossed properly set up on your reverse proxy. After that, you are pretty much fine as long as you keep on top of updating your containers.

I would be careful about which apps you proxy. Idk why you need to access the admin portal for pi hole worldwide. If you really want to do that, you should set up a vpn.

I want to have the same setup as you! Do you have any guides on how you did it?

My router supported OpenVPN out of the box so I just use that and have remote connections disabled in all of my software

I'm curious what the other, more advanced users here have to tell me about it because I'm still new to the self hosted stuff and that was the first thing I thought of to do

Twingate has been my go to. It’s amazing. Highly recommended.