I'm going to guess you did more than just watch videos... If you also applied that knowledge in practical work, you did educate yourself on how to use those tools.
Whatever you made is the validation/grading of your education. IMO that's a perfectly valid way to get an education, for those kinds of topics. It's much more risky to grade yourself on abstract knowledge where you can't directly make something and see if it works or not.
In a society with an ageing population mobility assistance is a growing market.
It's that expensive because it's hard to farm. If it can be reliably farmed the price would likely go down.
I've had partners like that in the past. If ChatGPT didn't exist they would've found another way to cheat or avoid work.
The type of partner who takes the task you asked them to complete, posts the task description on an online forum and hope someone gives them the answer.
If they start bleeding unexpectedly just send them to the waiting room while you look it up on YouTube!