If you have to ask then probably yes. However this also depends on if you have a lot if bills... how bad do you need the money? Do you have a family? Or other obigations that need your attention? How often do you do things for yourself or with friends? These are questions you should ask your self. Personally if I didn't have financial obligation and my job was flexible enough that I could work as much or as less as I wanted. I would take the time to enjoy life, traveling and being free. Good luck to you in everything you do!
Work too much?
Only if you got no debts.
Here u have good chance of dismemberment or death in next few years
This question doesn't really make sense. You work to financially take care of yourself, if that's the amount you have to work to take care of yourself than that's what you have to do.
No. Add another job.