I have had several experiences like that. What helps me is to always have a plan B. its helps me to keep moving forward, rather than being frustrated.
I will keep on trying it because an adage says that QUITERS never WIN and WINNERS never QUIT...
My emotion is that because i can see some people do not even strugle jet things `re happining in a right way for them. so, what is the cause? I know the question maybe some how silly but geting advice from other people might help solve the problem.