Mate, well done for being brave enough to take the first step and admit there's a problem. Know that you are not a one off case, or perhaps seemingly to you, the only person who couldn't remain in control. Problem gambling is extremely common and widespread, hence you are not alone, and such is the nature of the beast, that it is easy to exceed your limits and get caught in the moment, when our better judgement momentarily leaves us, and we are left totally vulnerable to gambling.
Except the loss, and now focus on the remedy and rebuild phase. Make no rash decisions, and no matter how bad the current situation you now are in may be, know that there is help available to get through the short term pain and hardship any losses may have caused. Hopefully you have some close family or friends that you can turn to for emotional and monetary support, even if only a short term loan to get you to your next pay check, then work on sourcing and speaking to professional gambling counselors and financial planners, so they can help you put small goals in place to improve your current situation and continuous recovery.
Problem gambling is spending outside your limitations, and continuously chasing your losses the more you lose, and the more you realize the negative impact each loss has on your personal circumstances. This is why it is so important to permanently close all your casino or betting accounts, so as to remove all and any temptation, as that little voice will continue to try convincing you, that you can turn things around with one last effort. Don't do it! This is the hardest step to ride out in the initial early stages, so be strong, and help yourself by removing any distractions from your main goal, which should be starting to rebuild.
I wish you all the strength and positivity you need to do it, and I know you can, as many have before you. If you need any encouragement or help locating services, we are always here and contactable. If you have no close people you can talk to around you, besides contacting professionals, I suggest you write down any and all feelings, and match it with writing down a possible positive solution to any negative feelings. This is a great way to release your built up thoughts and feelings, especially the negative ones that weigh us down at times such as this.
Turning things around can be achieved with a clear head, and the right advice.