I’m looking to start my own server, and was going to dive into YouTube tutorials. Do you have any recommendations to offer?
Service wise, I wanted to start with a pi hole, and maybe a music server or something to store pictures from my phone. Maybe host my own ss14 server too!
Hardware wise, i was going to start with a raspberry pi (of some sort?)
Any tips, references, or suggestions are greatly appreciated ❤️

Running a few services from a raspberry is as good a starting point as any.
Reading official documentation is always a good idea, instead of getting second hand knowledge from youtube:
https://www.raspberrypi.com/documentation/computers/os.html
https://docs.pi-hole.net/main/
https://github.com/pi-hole/web/
https://docs.berryaudio.org/getting-started/introduction.html
Regarding storing pictures from your phone, read up on the 3-2-1 backup. Personally I go for NAS + USB Backup + Remote backup at my parents house.
https://www.backblaze.com/blog/the-3-2-1-backup-strategy/
Immich is immensely popular for photo gallery server use nowadays but it might be too heavy for a raspberry pi, might be better off testing something like https://github.com/bpatrik/pigallery2