So your really serious about changing your health! You followed your intuition and came to the scary Psychological section!!
But I wont be able to prescribe anything to you here. I can only share my insights and my opinions and ultimately try to inspire you to do some work on your thinking patterns and internal dialogue about self love and new habits to facilitate long lasting change for your health and life.
For now check out this interview I did a while ago with Russ from Twelve Foot Ninja, a world famous Australian rock band about the psychology of depression and exercise. Enjoy
Here are some other videos from that channel covering topics like "opportunity" and the "journey" of wellness. They may just inspire that crap out of you !!! Enjoy