You are in a big mess right now, I understand the depression that comes from taking loans and losing in on games that you expected to have win and cover up for some of your debts, but just a quick one for you which may help in some ways, you have to move on and face it to fix it, since you acknowledge your addictions its OK to channel your energy into killing that addictions, and to do that, you need to personal decide to stay away from things that get you addicted in the first place you mentioned two addictions which are, gambling addiction and drugs additions to be your major problem.

But do you know that even loans and debts is an addictions too, take for example, you are free to take a line of $400 and gambling it away, weras some other person won't take such loan no matter what the needs are so it matter of addiction, aside from the m being addicted to gambling you are also debt addict and you need to work on that too.
This situation is not too big to handle, all that you need is to put yourself together and do the right thing that will get you out of your present state, this actions depends on you wholly, possibly channel all your weekly pay into paying back the loan, and avoid holding left over cash, plus avoid gambling and drugs.