I have no formal training except 1 single year of a trade school where i learnt a bit of pascal and c++. But i have been in front of computers since my earliest childhood starting with ataris in the early 80, C64, Amiga 500, and then starting from 286 across every major consumer x86/x64 CPU architecture. All I know except logic and programming basics are self taught, i never worked in the field outside of giving tech support for ISP clients a.k.a help grandma configure her mailaccount or help someone reinstall their modem driver.