Even more reason to do it yourself, to avoid ten wrong answers. I worked 12-7 days for many long months and years and still found time to fix 4 cars at all times. It can be difficult though.
Not trying to slam anyone, but getting to know stupid things like bolts allows you to mod on top of mods like I often do. Once you are familiar with different screws, bolts and what it takes to use them you can often recoup broken parts by drilling new holes and using the screw which familiarity tells you will work there. Can't do that exposed to only one, you need to handle all kinds, time at hardware store well spent. Just today fixed my Focus a/c, clutch started dragging while a/c off, no airgap there, where did it go? Maybe internal wear in compressor or the clutch outer is moving on its' bearing. Mechanic's first words there? 'You need a new clutch!' Nope, go to hardware store, buy a correct thickness (.025") and OD stainless washer for thirteen cents, drill a slightly bigger hole in center and instant a/c clutch shim. Put it in and a/c now working fine and dragging noise driving me crazy is gone. THIRTEEN CENTS there.................because I knew about the washers stocked there.