I, too, like to tinker with broken stuff around the home. I once overheard my bride tell a friend that I was "pretty handy with home repairs," something she'd never tell ME.
But many things I first research (YouTube, etc.) so I have a better chance of repairing it, correctly, the first time. Just did such a chore last month when I replaced the shark-fin antenna on my 2018 Ford Explorer (car wash ate the old one). The Ford dealership quoted me $1,000 for this fix. And the "simple" video suggested it would be a 15-minute job plus a $150 replacement antenna. Finally I found a "better" video which showed what actually needed to be done, including removing the back half of the roof liner. Fortunately, I had the right tools (courtesy of work done years ago replacing my 2002 Corvette's interior and installing an aftermarket stereo/navigation system). Even then, only after I got the old (broken) shark-fin removed, did I discover that MY shark-fin was different from the one that Ford's "enter your vin" search tool promised me I needed. So back to duck-duck-go to find one with similar electrical connectors (I needed an antenna with TWO dual-barrel FAKRA connectors, not one and a ground). I waited five days for UPS to deliver the one that would actually work, all the time with the rear roof liner duct taped to the roof to give me rear view visibility. All in, I spent $220 for the proper antenna and $1 for the Modelo Negra I consumed in celebration.
Next chore - I need to repair (or maybe replace) a torn driver seat cover (bottom) on that Explorer (small tear out of sight to everyone except me). I know how this goes, generally, since I rebuilt the entire interior of my 2002 Corvette. But each car has its "secret" screws and plastic connectors which, if not discovered and carefully disconnected, will send me to the Ford parts store to buy replacement connectors.
Last night I fixed a backed-up sink drain. Seems the drain in our AC's attic-located dehumidifier ties into a bathroom sink's drain, and that entire contraption was full of gunk that looked like old tissue paper. I showed the gunk to my bride but didn't "accuse" her of anything - message sent and received. It was a 1-hour job, mostly to disconnect and clean out the pea trap PVC, run a drain snake through the entire system, and finally reconnect all of the plumbing. My 78-year-old back, with fused L-3-4-5 vertebrae, made this an interesting chore, but I "got 'er dun." Better than a $200 plumber's charge.
I'm unafraid to tinker with most home electrical stuff but won't touch replacing interior wiring or circuit breakers. Replacing ceiling light fixtures and ceiling exhaust fans in the bathrooms is a snap. I even installed 110-v wiring in my attic to power a light. Just threw the circuit breaker to that circuit while I added the new wiring and light fixture. [Note to self: next time, do this in the daytime, when dormer windows' ambient light is sufficient, and do it in the late fall, when attic temperatures aren't overwhelming.]
Tuning my outdoor sprinkler system is a recurring chore - replacing sprinkler heads, re-routing sprinkler lines, etc. I've even replaced/rewired the system's electrical controller/timer. I actually enjoy getting muddy doing that work. Only thing I won't do is replace the sprinkler stations' solenoids. I know where they are located (all 8 of them), but I can't justify buying the necessary tools to do a once-every-10-years repair.
Same with replacing leaky hose bibs. The ones in our neighborhood fail over time (15 years or so) - our water's high mineral content corrodes the bibs' brass cut-off valves to the point that rubber washers fail to prevent constant dripping. But the bibs thread into connectors which are located behind our exterior brick walls, and if the bibs aren't "carefully" disconnected, the connectors get damaged or twisted off. THAT is a $500 catastrophe - chisel out 3 or 4 bricks, replace the connector, etc. (that's what it cost my next-door neighbor when HE tried to do this). So I leave that to a plumber and let him deal with the consequences.