I've relapsed and can't tell anyone
Are you sure there is no one you can turn to for help?
I'm not really sure they care.
It's very important that you be honest yourself. It's best to reach out to others when you are struggling with your addiction. I'm sure they'll listen to you.
WTF? Can't you see I'm using drugs!?
You need to be open and honest with someone about what is happening. If you are struggling, family and friends need to know so they can help you. You don't want to keep going down this road.