I feel instant gratification has burnt my willpower, which has impacted my ability to function in life.

I've tried abstaining and working more, thinking I could train willpower. But it's so self-sabotaging it's like I'm fighting addiction. I think I wasted my early adult life not building stronger work ethic and skin, but feel it became more difficult than for others in a slow decay. I was sheltered growing up, but wasn't raised by functional people.

I want to take my life back, and I know how. I'd like to know about what could make this easier. I guess I should be looking into Addiction psychology?