There is no reward without sacrifice.
You should be a missile and go and destroy your opponent.
If your opponent is tapping, your technique is good. If he is not tapping, your technique sucks.
Punch a black belt in the face, he becomes a brown belt. Punch him again, purple.
Life is yours, do not let life's problems have other influences on what you believe. See for yourself.
If you want to be a lion, you must train with lions.