<i>If I knew there was hope I could somehow return to a “mainstream religious” community, it would help strengthen my resolve to return </i>
The Rambam at the end of Issurai Bia (22:17) ???? ??? ???? ??? ??? ??? ????, ???? ??? ?????? ?????? ??????? ??????. At that rate one should not be surprised when one hears of various impropriety. So don’t think of yourself as such a big sinner that could not be accepted to the Kehilla.
We don’t know what others do, but we generally assume a Chezkat Kashrut for people. You are no different.