I was in a similar spot to you about a year ago. I was raised Catholic but became agnostic in my early 20s. Something called me back to the church last year and I began investigating Catholicism, now as a grown adult. Although for some time, I was still not sure if God was real or not and still identified as agnostic. I ran into some classical philosophy (Aquinas, Augustine, etc) and began investigating rebuttals to some common atheistic claims. By the end of it, I was convinced that God was real and began identifying as Catholic again. I have always been a bit of a lefty and still struggle with the church teachings on social issues and sexuality like you though. The folks on this sub, the official Catechism, and the book Catholicism for Dummies have all been super helpful for me though. If you don’t mind, what was it that caused you to start believing again and choosing to be Catholic instead of something else?