A word of advice, Its cool that you have a very broad interest (...)
Yes, you're right. I see it everyday in the Music Eng., Producing, and in the band giggin' world.
When I started to brush up on my knowledge about Basic EE and Basic Circuit Analysis the second time, around 2019, with intentions on building my own clones, I came across the same Axiom. Jack of all, master of none. The first time I studied Basic EE was in Sae Institute back in 2005.
While I was checking out everything concerned about building clones, I came up with a plan so to don't fall into that pitfall. Study four or so model schematics of a not-crowded recording chain, until I have it down, and then move on to different models.
One schematic of each: Pre-Amp, Compressor, Stomp Box, Amp.
I already know kinda by memory the ins and outs of a classic fuzz box, with a little brush up I can open up LTspice and input the schematics, and I'm pinning down the Fender Champ F51. I can solder different resistors in guitar cables and color code them with no problems. I know a few tricks here and there. The Big Muff it's a world on it's own but some years ago I replaced my reading list for schematics and stuff about building clones, including theory. And the usual Philosophy books here and there.
Until I know what usually goes wrong with them, how and where they usually break down, how to analyze and search for problems in that specific model, how to calibrate and service them, every x amount of time, I won't move to the next model. I kinda know what I'm getting into lol and I love it.
I don't plan on designing my own, but cloning them from classic schematics resourcing all the parts personally. When I'll know the design and parts that make up the unit by memory, and how to build it and resource the pieces with complete ease, plus the ins and outs previously mentioned, I'll move on to other models. May take time, but It's worth it.
To build a clone costs me around the same price of a not so good sounding budget or middle priced Brand gear with the same function. Example build compressor CL 1A clone, middle priced Brand compressor. This is what I do for a living, so it's a no brainer.
Usually I am doing something music related 12 plus hours a day, most of my friends work in the Music Industry or in the Arts Industry, so I won't get distracted much.
I would have started long ago building gears, but where I live there's a shortage of everything: Shortage of electricity, shortage of running water, shortage of paper money, shortage of jobs, and shortage of parts, naturally. Instead I'm soaking in all the knowledge and sim practice I can until I can get up and working.
But that saying is really true none the less. I hope my plan works as intended. Thanks for your concern