I was into cars since 15 years old, took shop in high school 3 years, went to tech college 2 years for an AAS degree, worked at a large Chevy, Subaru, BMW, Volvo etc.
dealer for 34 years as tech, foreman, manager then had enough when it was bought out for the 4th time & I spent all my retirement money
13 years ago to buy an established shop. 47 years repairing cars! I think my next business will be a candy shop, NO unhappy customers!
Has not been easy but I am making way more money than if I was still at the dealer environment & I have an investment. DEALERS USUALLY SUCK.
Advice: charge enough so you are happy, 60% GP works.
Dave