Selfhosted

Hello all, i know this seems like a stupid question to ask in this community, but i am serious.
To me: i am generally comfortable around computers, tried a few simple projects (like a music streamer based on a rpi) but i have no real education on this - all i do is follow the documentation and then google for troubleshooting. I am also (kinda) privacy focused and really annoyed at all the enshittification observable everywhere so i installed revanced and about half a year ago when i bought a new laptop i set my old thinkpad up as a proxmox-server. This is running my HomeAssistant-Instance in one VM and has another VM running ubuntu for my docker containers (paperless-ngx and immich). I really like the services these provide, but to be honest i feel uncomfortable with entrusting my data to them, as i am constantly worried i will break something and corrupt the data. Also i think i underestimated the amount of updates and maintenance that accumulates.
I am also not really willing to spend too much time learning all this from the ground up, as my dayjob is 8h in front of the computer anyway, so i dont want to spend my whole evening or weekend there as well.
I guess what i am really searching for is a service which i can just trust and pay for myself OR a very userfriendly suite of selfhosted apps.
Services i need would be:

• general cloud storage
• document organization (a la paperless-ngx)
• photos

I would also like:

• some kind of shared notes
• a media suite (like plex)

I am fine with Home Assistant, as that has no real consequences should i really mess it up badly

Thank you for any suggestions on how to move on in this matter.