Playing on another gambling site may not make op win in my opinion for I do believe gambling company is gambling company and all of them are out to make profit. If op don't have the skills to make him or her successful since some casino are skill base then he can equally lost in any other gambling sites.
I'd be careful with the thinking that skill will someone effect the result of your gambling experience. Sure, some people might know a little better how to play games then others, but I think the house will always have the edge no matter what. Players should gamble with the expectation of having a good time and losing money. That's literally what it's about.
As for stake, I've always been pretty impressed with their resolution of my issues. I never even put in a bug report, just complained on their thread a couple of times about an issue and they resolved it. From my experience, they go above and beyond for their customers.