Mate, the most brutal way to put it is to just stop. Take a break, it doesn’t have to be permanent, tell your mates you need to reign in your health and finances for a bit. Stop for a few weeks and you’ll feel better, snd wonder how and why you binge, I take long breaks from drinking and sometimes I have a drink everyday, but I have only one, and when you get to a point where you can happy with just a relaxing beer, without ten following, you feel more in control, healthier, lighter, and more clearheaded.
You shouldn’t ‘get your mind off things’ that is unhealthy escapism, you need to work through problems with self reflection and hard work, not drink and forgetting
There is no trick to stopping, it is just a desire for change, Taking up a replacement hobby helps, as it transitions the idle hands from thing to another, and a hobby can be anything. Painting, music, cooking, sports, the gym, videogames, etc