Upset

I know it might be not my fault or not because I'm not good enough at that. But it really makes me upset.

Could you think positively in this kind of situation? At least, I learned something new, i learned how remote debugging works. huh? bxxxshxt!

What I really learned: should ask for help and discuss with others. Customers/FAEs/your boss only care about if the issue could be solved in time. The way you solve it isn't a matter.