Assuming you mean Android, FYI syncthing for android is discontinued, so you might want to look into other options.

https://github.com/syncthing/syncthing-android?tab=readme-ov-file#discontinued

I don’t think immich supports this natively but you could mount an S3 store with s3fs-fuse and put the library on there without much trouble. Or many other options like webdav.

I really like Zoraxy. Similar to NPM but it’s its own thing and I like it a lot more

I know how to use raw nginx/Caddy/traefik to do it, but I find the WebUI and all the extra features Zoraxy has to be very convenient and easy to use.

Having been in a similar place around the same age, the things that helped me were: confiding in friends if you can, a therapist, finding the right medicine, and working on making things better one small, manageable step at a time.

Regarding medicine I know there are lots of stereotypes about what taking medicine to help with mental health issues is like, but I urge you not to write it off nor to give up if one medication doesn’t work for you. It’s a process, and one you need to work with a doctor with to find the right fit for you. Also, medicine won’t magically fix everything on its own, it’s just a little bit of help on the road to finding a complete solution.

Ultimately there are lots of good recommendations here. What works for you is going to be unique, and it’s something you’ll have the best luck with if you get some help.