>>33243337 (OP)You need to reframe exactly what your sins and regrets are, and what to do with them.
I've been struggling with the same issue and I realized that my past is not a crown of thorns to be worn. Suffering from my past changes nothing, it doesn't absolve me, it just prevents me from moving forwards.
Our sins and regrets are teachers. They are there to show us what we did wrong, and how to better move forward with our lives as people who are better than where we came from.
Once you start seeing your past like that, things will start to fall into place, and you can start to grow.