I am thinking about a career change...

hey guys! i have been a mechanic my whole working life which is about 18 years. i am 33yo. i like what i do, and where i work. i think i am just getting burnt out with it:-( i dont have the drive i once had for wrenching... has anyone else felt this way? i have found myself thinking about making a change in my career.... i dont even know how or where to start? has anyone else made a move like this? or is thinking about it? any info would be great! THANKS GUYS!!