Alcohol and Drug/Medication abuse

I'm M25 and at a point where my alcohol and drug abuse is getting out of hand again...It's Monday 8pm and I have to be in work in 12 hours but I still drink and took some pills even tho I'm alone, if I don't do it my head is full of thoughts the whole time what is not letting me sleep at all...I don't know what to do, I know it's super bad but I can't without it

I thought maybe someone feels the same and has the same problem and maybe wants to talk a little bit