We all face this problem almost all the time. We are concerning about our decisions, that will more or less affect our future. Think wisely is the only way. Besides that, never feel regret on what you have decided. Walk your way with courage, with no remorse and confidently. Although it may be a hard one, but as long as you know someone is there supporting you, it is definitely worth it.
YeeSim, i wish you all the best. :)