If you're looking for faults use a mirror, not a telescope
A bad habit is only a habit until you can observe it, then it's a choice you make
Whatever your past may have been, your future is still spotless.
Let Allah will deal with the people who wronged you in this life, because too much hate will eventually consume you to
Let go of your past, but never forget what it has taught you.
A good way to forget your troubles is to help others out of theirs.