I am a disabled/retired master automobile tech. I was an ASE certified master automobile tech for 31 years, ASE advanced engine performance certified and ASE service advisor certified. I am also a former Chevrolet certified master tech, Texas state vehicle inspector and Ohio EPA certified emissions repair tech.
I am also a 3rd generation DIYer. I have done my own plumbing, electrical, tile and carpentry work.
I don't claim to know it all by any stretch but I won't hesitate to try and repair something myself.
I also won't hesitate to call a pro if it looks like that is the better option.