Tell your youth leader everything. That is what they are there for. They wouldnt be in that role in your life if they did not care so deeply.
Do you not like anything in your life, is it really that bad?
If you want to share more of the story, and get advice.... Go to the stories section...
clearly this isn't a place to put the whole story on a Q & A section.
Why lie. You need all the help that you can get. Tell someone before it's too late, ya know.