How do I wipe this EX-FRIEND out for good as he makes me still feel like a COMPETITOR?

You sound like a jilted lover. Now I know what my ex-friend sounded like. Doesn't sound like he's the one competing, you just send awkward vibes. Maybe he was the closest friend you ever had. Believe me brother I've been on the same boat. What you need is a little fortune to come your way, and start taking back your life. Brush your teeth cochino, clean yourself up, and take care of yourself. Get social and find places to volunteer, better than sitting at home sulking. Learn a trade, maybe even hit the weights. The point is, your in an unhealthy frame of mind and you need to get out. When you're stuck at home you begin to harbor ill will to people who once cared about you. You may feel like your life is at stand still and people are off doing exciting things and you just want to be a part of it. Things will work out if you let them. I used to be a bitter and resented others success but you curb your attitude and you will see things will look up. Well friend, I hope things work out for you. One other thing, avoid toxic triggers. Drinking is nowhere near as satisfying as an exhilarating run. You find things about yourself when you push your limits.