Now the questions are
1. Can someone beat the world record of bad luck which I proudly hold in slot machines ?
2. Why and where to you find the courage to keep playing after such type of devastating sessions?
It's common in my opinion, it's just you're unlucky, even I use more money than the money you use for slot games, usually when I've done 100 spins without a bonus hit I will move to another game, it's the best way to try your luck.
I've experienced that in Starlight Princes but I immediately switched to Gate Olympus and there is a little luck for the capital that has been lost with the same scheme as you experienced.