Yes! You are good enough. You do not have to live for anyone but yourself. If you want to change and grow that is your decision, not anyone else's. If you decide you want to learn a new skill, change your behavior, develop a new talent, and/or study a new subject that obligation is to you and you alone. You can seek help from others but not change because they want you to. You are good enough.
If you decide you want to improve some aspect of your life, here are a few suggestions to consider.
Visualize your desired outcome. See it happen in your mind's eye.
Write it down and post it where you will see it every day.
Commit the time needed to accomplish your objective. Don't procrastinate.
Seek help and encouragement when needed.
Enjoy your success.
If you decide you want to shed an old habit and/or just create a new habit, then make it happen.