Age is just a number. Don't compare with others, instead compare with your current self and after you have calm down, set very realistic goals and stick to it.

Nobody is going to discipline you to follow your goals, because ITS YOUR LIFE. You wan happy life? Work towards it and remember you are working against it if you go gambling again and you will just end up in this bottom pit again. SO ABSORB AND BE VERY AWARE THIS LOWEST POINT FEELING AND REMEMBER THIS FEELING every time you feels like gambling again.