I never understood people who seemed to be perpetually working on their vehicles.
Why can't you fix it to a point where it just works?
Working on my bicycle has shown me the light.
Using a wrench, about three sizes of allen wrenches, and only a few specialized tools, you can almost completely disassemble and reassemble a bike.
Perhaps riding a bike that you put together yourself could incite fear: gee, I hope I tightened those bolts in the right order!
Ultimately, it is not very hard. I am sure that you are capable of working on your own bicycle. I highly recommend it.