Maybe it's not what you'd like to hear, but I believe occult practice is essentially a solo endeavor. Then again, I have never joined a coven or any practice organisation, so I cannot vouch for group practice either. Aside of a few conversations in person where I shared ideas with people curious or receptive (not practitioners, to my knowledge) the only interactions I've had with other practitioners over the years have been online. Hell, I haven't even practiced sex magick with a partner.
I'd say you have to work in transforming that loneliness into solitude. But I'm more than twice your age, so it might be easy for me to say that. I can imagine how, if I had been starting at your age, I'd be longing for partners in crime as well. But perhaps if you manage to have a social life outside of your magical practice, you'll be able to cherish it as a space of your own.
For whatever it might be worth, my paradigm helps. I couldn't sustain a psychological model for very long. Both my way of thinking and my experiences progressively moved me to a spirit model. And there you are never alone. If that works for you, and you manage to establish relations with Other (whether it is through ancestral work, animism and plant spirits, pacts or devotional communication...) that feeling of loneliness will change.
And well, in the meantime we are here