One of the hardest thing I had to deal with in leaving my own cult mindset was coming to grips with why I went to church
Up to the point where I left, I only went because I believed God would drop kick me to the curb if I didn't. The church I was raised in certainly didn't give me any joy.
When I left and finally got over that fear, I realized that I had a desire for community worship. I didn't want someone preaching at me (believe me I had enough of that to last a lifetime) but I wanted to be part of a group of people who believed in Jesus.
The startling thing to me was recognizing that it became an act of faith for me to walk into a church knowing that it was no longer my concern what others did or thought and trust that God was more capable than I to sort all that out. I was there to worship and to develop my relationship with Him.
Just that simple idea of realizing that was huge but very telling about what living in a narrow cult mindset had done to my outlook on becoming part of another body of believers.
My point is this. If you start with the premise that God wants a personal relationship with you, then you just need to find a place where you can cultivate that in peace. If you feel like that is a body of believers, look for one where the fruits of the spirit ( Gal. 5:22-23) are in evidence. That more than anything (including particular doctrines) will tell you if you are in a healthy place.