Motivate yourself, be your own critic.
The people who are most successful in life are those that motivate themselves. Those that need that constant push from somebody else may one day end up waking up without that catalyst and become very confused.
People get worse at driving because after their habits set in, they go on autopilot. They don’t look at themselves from the passenger seat and look over mistakes that they’ve made.
The only way to get better is to constantly push yourself, and strive to become better at everything. It’s like looking over a test for mistakes that you made and going over them so you won’t make the same mistakes again. It needs to be applied to everything.
When nobody else will, your best motivator is yourself.