I know it seems impossible to see it now, but everything is going to be OK.
Start with the basics by putting blocks on everything to stop you from gambling further.
Get in touch with the bank who gave you the loan and explain that you will be unable to make the payment. They will know how to handle everything.
If possible, find a job. It will allow you to pay off the debts but it will also be a healthy distraction for you, filling any time you might otherwise spend gambling.
You’ve done the right thing coming to this forum. I stopped gambling three weeks ago and everyone has been incredibly supportive.
You will be OK, just take each day as it comes