I do not know your reasons for wanting to quit, I quit in 1988 for several reasons. NHRA decided to add 10 HP onto the car and motor I was racing in stock class, 1963 M.W. 415 HP and at the same time they decided to subtract .10 off of the index I had lent the car to a freind for the World finals and was walking through the pits biting my lip pi$$ed off at racing NHRA and finally realised that I was stupid to be doing something I wasn't enjoying, especially something I paid good money to do I sold that car shortly after that race and took up flying , that turned out to be a lot of work with not much fun ( I do love doing acrobatics ) I ended up buying a airplane and flew it for 15 yrs, it served our family very well and I tripled my investment when I sold it in 2006 My message is to walk away now, if that is what you want and don't look back until you want to There are many ways to have fun and enjoy life Good luck on whatever you do