You learned from it, so see it as a good investement !
We all have payed the price for learning, and those who did not, haven't learned a.... its just not possible to learn the hardware from books alone , thats only half the work. Books help for academic knowledge , hands on experience for hardware knowledge.
There are no shortcuts either, it takes decades no matter your background or budget and some never develop the finesse, there are however different fields and time will tell were you'r talent lies.
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