Supposing you could travel back in time and give your earlier self a book (or at least, a few sheets of paper) that described 'good programming' (e.g. using GOS

Supposing you could travel back in time and give your earlier self a book (or at least, a few sheets of paper) that described 'good programming' (e.g. using GOSUB, in this context) - would you do it? Would you have been better off 'doing things right' from day one, versus experimenting and muddling through?