Hi
I haven’t lost huge amounts however after reading your post I think I have few strategies that may help you .
Have you tried meditating. ? . Meditating will help you to relax your mind and focus on positive not negative thoughts .
What’s done is done you keep going back to it don’t do this to your self . The more you think about the past the more depress you will get that’s why you need to focus on changing your thoughts .
Try using affirmations every time you have a bad thought .
You need to reprogram your subconscious mind in order to win this battle . Casinos messed with your mind and hypnotised you only way to get out of this state of mind is to recognise it and work with it .
Us humans have incredible coping mechanism once we know how there is nothing we cannot achieve we just need to know what cusses this . Maybe spend your energy on reconditioning your mind .
I hope this helps .