It's Okay. Life doesn't have to be perfect, it just has to be lived.
When it is time to die, let us not discover that we never lived
You have not lived today until you have done something for someone who can never repay you.
It is impossible to live without failing at something, unless you live so cautiously that you might as well not have lived at all. In which case, you fail by default.
Life is a succession of lessons which must be lived to be understood.