I’d suggest staying away from the boards and the sites and books, etc. that are near occasions of sin for you, especially those that may tempt you to lose hope in God. It might be difficult at first, because Satan will tell you that you are missing out on something, that you
need to know if people are talking about you and what they’re saying, etc. But the reality is, people will gossip and criticize and condemn because people are sinful–and remember that those with genuine self-confidence don’t need to tear others down to build themselves up. And besides, knowing what they are saying won’t help you and won’t change them. If you focus on your spiritual life, then eventually, their opinions won’t matter to you, because God knows who you are (and hopefully, so do you).
I know how you feel, though. I fell away from the Church years ago, mostly because I didn’t see very many Catholics actually practicing their faith
outside of Mass. Some would walk out the doors of the church on Sunday morning and start gossiping right off! I saw Catholics criticizing and condemning others for splinters, while the accusers had logs in their eyes. I felt that if this was what Catholicism was, I didn’t want to be part of it.
Later in life, God drew me back to the Church, and helped me to learn that faith in Him does not mean that His people will be perfect–only that
He is. He reminded me that there will always be those who think they know better than the Church (or even think they know better than God). The wheat will grow up with the tares, but God will sort it all out in His time. That’s not my job.
Another awesome thing I’ve learned is that you never know how people may change. I’ve seen some radical transformations in people’s hearts–some practically overnight, others more slowly, even over many years. There is hope in God, even for those who struggle with pride and self-righteousness.
Read more of the Bible, and less of the things that challenge truth. Stay close to the Sacraments, and pray often. Pray especially for those who think they have a special seat at the right hand of God just waiting for them–that means they have forgotten Jesus (or that they feel they are equal to Him), and that’s a sad, sorry state to be in.

(I should know; I’ve been there.)
And don’t make the mistake of thinking that you (and/or your sins) are either too small for God to notice, or too big for His mercy!
Will

for you!