Taking up what Asbjorn wrote above, book - Arianna started a thread a while ago asking people to share the books they found most helpful and while it’s very varied, it might be worth giving a look:
If you’re going to practice around other people, I’ll PM you a method of travelling to spirit realms that you can use, even lying in a room with people in it, completely unawares! 
It’s like the method I used when I was little and doing just that, but far more established and with its own entire system attached, and it’s a method, not a belief system or anything, just a tool.
I think it may be especially useful to you, since it allows a strong connection with elemental forces, which may allow you to link to the spirit of Fire and maybe somehow get an advantage in your ongoing fight through that, because its based on ancient, ancestral, and global methods people used to connect with spirits, to change this reality.