Reaching your goals is not success if you compromise your values along the way.
Getting ahead shouldn't force you to leave people behind. No accomplishment is worth sacrificing kindness or integrity.
Ambition shapes what you achieve. Character is defined by how you achieve it.
It is probably the case that, somewhere in the past, you did something that made you more happy/productive/fulfilled, but you don’t do it anymore, for no good reason. Think about that, and do it again, preferably instead of one of your less desirable behaviors.