Sometimes in life, things happen that will knock you back. Hell, you may get beaten to your knees but you must never ALLOW this world to knock you down! Conjure up all the strength you have and drive through whatever it is keeping you on your knees. Build up the strength and your knees may never buckle again!
Be yourself; no base imitator of another, but your best self. There is something which you can do better than another. Listen to the inward voice and bravely obey that. Do the things at which you are great, not what you were never made for.
The power of memories and expectations is such that for most human beings, the past and the future are not as real, but rather more real than the present.