Can't stop this guilty feeling..

Can't shake it off.. I don't know.. I just feel guilty because I can't help but feel like I'm cheating someone of an opportunity. I am .. I suppose..

I feel selfish. I suppose it is a selfish thing to do.. yet, it's something that is of a norm no?

I don't know la. The ball's in my court..but even my lecturer's telling me to hang onto it.. So, what do I do??