I don’t know what to do

Every time I try to improve myself in some capacity, whether that be by quitting porn, converting to Christianity, getting a gym membership, my parents are always the first to undermine my progress. I feel like I’m being raised by 2 children at this point, I don’t know why they want me to relapse so badly. It all makes sense now why I have no direction. What am I supposed to do with my life? And what do I do about THEM?