Was in the tuning game for 10 year then lost my job. Got a job at a major diesel engine company been there now for nearly 10 years. In that 10 years my private work has been busy thats just nights and saturdays. I do ok with this so ive got my full time job then all my other stuff on the side so ive got the best of both worlds but it would be a struggle to find the amount thats needed every month for the house kids cars ect ect. Id say work for someone knowing what your getting every week/month then crack on with your own stuff when you can. Good luck