You are right it can happen to anyone – dont matter what you have or who you are.
You need to seek help, go to a doctor – even if youre only doing it once a week youre addicted and before this gets too deep you need to act, fast.
there are lots of people that can help, my BF has a problem with cocaine and its living hell for me but i do understand its a disease.. that needs to be managed before its too late.
You may not think you need help from someone but i really would suggest you do or this will continue and itll get worse and spiral.
go to the doctor, ask for help, go to addiction counselling as this really helps too