Inner Peace

In my opinion, inner peace is something that is hard to obtain. At least, I feel like it is for me. It seems no matter how hard I try to be happy, I am unable to. I may be happy now and then but I don't feel like I can stay happy for an extended period of time. I always feel like I can be doing bigger and better things than I currently am. I feel like I'm not the best I can be and this causes me not to be able to find inner peace. Many would say be happy with what you have and who you are and you'd be at peace with yourself, but that ain't my style. Why settle for mediocrity? Too many people settle for mediocrity and then aren't happy later.