I'm only about 3 years into my bicycle hobby. As a kid and then again as a mid age adult I rode bikes and have always done my own work. I will confess that index shifting and integrated brake lever shifters on road bikes are somewhat new to me. I recently had to fine tune my triple front der and can very close to giving up and paying to have it done for me but I took my time, tried to gain a through understanding of what I was trying to accomplish and finally found success.
I love tools and have always done my own car repair even engine and trans swaps. In the 3 years I've been on my bike I have amassed a reasonably comprehensive bike specific tool cart, bike stand and wheel truing stand. I still work full time and have a 1+ hour commute to work each way plus other hobbies that eat up time but I hate even the idea of having to admit defeat on something as simple as a bicycle.