You can`t be good or bad at slots - it`s 100% based on luck. The only thing you can be good at is money management and damage control. It`s as simple as that really even though most people have a hard time avoid tilting due to the nature of these games. 
Thanks for the quick response. Very true what you are saying, also applies to poker when you realize you might have the weaker hand or even run into the nuts. Don't tilt and go all in, but control the damage. I would say that in poker damage control is almost as important as winning pots, especially in the late game. Having the mindset to control damage is what really sets you apart in long poker sessions. Your chances will come to win big pots, but if you tilt out once and go all in and get called, it can be over.
Damage control is hard work if you have to do it for hours or even days in tournaments. Costs a lot of mental energy.
There is two things that could happen in that situation, either people will call my bluff and I will lose my money and leave and it is easier to get more comfortable about it at that point because when you are not gambling and when you are done, even if you lost all your money it is easier to get back to normal feelings instead of keep being angry all the time.
Or maybe they will not get my bluff, and I will end up winning some when they fold, which would basically be going back up and trying again which would be basically until I lose it all anyway. This is why I do not play poker as much as I used to.