Also a note about Christianity, while he does seem to be one only when it's convenient for him, it does not actually make you unchristian to sin. The TL;DR is God understands you're fucking retarded and will keep making mistakes, but you are forgiven if you genuinely repent.
This word just means you must actually regret it and strive to not do it again, not just say "omg god im so sorry pls forgive" then say "ALRIGHT BOIS SINS FORGIVEN LETS PART WITH DRUGS". Understand what you're doing is wrong, be ashamed of it, make plans and take actions to stop doing it.
You don't need to despair if you keep failing, but you should know that you are failing and keep trying not to, as well as regret failing. It's not "God wants you to feel these specific feelings", but "if you actually regret it, these are the sort of things you will feel"
That's not to say Nick is a good guy or that he feels any of this, but people who keep messing up or end up doing bad shit aren't automatically fake Christians. If he genuinely realizes his mistakes and repents then God will forgive him. And this is a pretty human thing as well, realistically online people will too. Just imagine if he said
"Guys I've been so fucking retarded in the past years, my behavior was completely off the rails I was a huge lolcow. We're going back to the fun streams and videos we had before and I'll try to rebuild my relationships with people, or at least admit I was wrong and ask for forgiveness" and then he'd actually do that. He wouldn't be in everyone's good grace right away, but if he doesn't do retarded shit then there won't be reasons for people to make fun of him