Hi Andrew, first may I say welcome to the forum and well done for having the courage to speak up. You have explained your situation very well. There are a few things that jump out at me from your post.
1 . Feelings of suicide, this is of most concern and maybe calling beyond blue would be a good idea. It can be completely anonymous and will give you some foundation.
2. The debt collectors, these sound like very nasty people and the sooner you get rid of these people the better. Again beyond blue might be able to direct you to an organisation that can advise you on your finances.
3. People in work are treating you badly, this is not on. Is it possible you are being bullied? Does your job have an employee assistance program. This is an excellent program that is totally anonymous.
4. Drinking, welcome to my world! I love it, nothing better than getting a good old bottle of wine down your neck but very dangerous, as you said when you wake up it,s just as bad as before.
5. Eating, this is not good.
so after all that you,re probably saying to yourself thanks for that captain obvious but I,m just trying to show that issues can be broken down into individual portions and managed one at a time.
sorry got to go good luck Andrew and let us know how you go