Taking Latin instead of machine shop in high school sure has gotten expensive over the years.
lol... don't worry, I had Zero interest when I was younger too. Dad bought a '52 Chevy truck as a "father son" project... that was never touched by me. My folks kidded me about putting on garden gloves to put the chain back on my bicycle.
My point was getting into motorcycles. I could afford to buy a used bike, cover the registrations, insurance, fuel, gear, etc... even the maintenance items, but paying someone else to do things like change brake pads, of the chain and sprockets, would mean that I got to ride less... as in, it'd be parked for several weeks while unsafe as I saved up money (I wasn't smart enough to plan ahead back then... was reactive instead of proactive).
Decades later, I'm reasonably accomplished with 4-wheeled vehicles (and have since retired with motorcycles out of boredom, well... getting married and wanting non-solo activities might have contributed). And it's not an all-or-nothing deal with working on vehicles. You said you have a CEL, so start with getting a code reader ($20 for bluetooth or wifi that works with your phone). O2 sensors bad? Those are a simple 20 minute replacement... you can buy the most Basic of tools to do that job (a 10mm wrench) for under $30 and just let them live in the 4runner. Every little bit that you do yourself is knowledge gained, money saved (even if you're buying tools, it's still cheaper) and guess what... if you break something, or get stuck... it's not something that can't still be fixed by someone else.
But, some people have Zero interest. I understand and respect that. Heck, I made a living off those kinds of people for a number of years. That's why I said that if you Want to learn, to do the work yourself, to just say the word. What I've seen in this forum so-far has reminded me of the closeness of the motorcycle forums I used to belong to. People who will gladly help someone. If you want to learn this kind of stuff, the 4runner seems like a great starting point. Loads of people who are into them, lots of parts, that are generally pretty affordable. Very robust platform too, can take a lot of "noob wrenching" torture without suffering.
Hows that for moral support? :tea: