I need advice

So I struggle with thoughts of cutting myself and lately it's been getting worse due to my anxiety and I've tried the whole rubberband on the wrist and holding an ice cube in your hand technique but it's gotten to the point where I can't even go into the shower without those thoughts running through my head. I also have the urge to drink now it is illegal for me at the age that I am and that urge is also becoming stronger and I have no one else to really talk to help me with this. I need advice