I immediately stopped meditating all together and slowly got my sense of self back. Since then I only briefly meditate when I feel I can use the benefits of it (e.g. enhanced emotional perception or more focus etc.).
I actually did try joining a meditation group, but I had a very bad time. I have a loud and constant inner monologue, but when I calmed my thoughts, all I experienced was primal negative emotion. Some mixture of shame and terror. I don't mean this literally, but it felt like a demon was trying to posses my mind. The instructor was a very nice person, but not a professional, so maybe I could have had a better time with a better guide.
Finally, I've stopped trying so hard to suppress my ego. I'm very curious what living in a society that supports low ego would be like, but the one I live in doesn't. Ego has many used (especially in a corporate setting, it's a tremendous asset), and the experiences of ego and dopamine are part of the richness of life, even if, when viewed at a society level, they often seem so dysfunctional and defector-ish.
For meditation I worry your teacher or the type may have been a bad fit. Meditation teachers I follow encourage looking for joy and savoring the sweet feelings of being in the moment. It feels comparable to enjoying a beautiful sunset.