"There was other advice as well, but that's not the topic here...."
The whole game is the topic.
Instead of 7...Bxf3. Did you look at 7...Nxd4.
White's turn to turn down winning the d-pawn.
White played 16.g4. 16.Nxd5 wins the d-pawn (16...Qxd5 17.Bxh7+)
and White now has all kinds of threats.
If White had read the board he would have noticed Black has the wrong Bishop for
the h-pawn. Something I never saw mentioned in the notes. So instead of the losing 36.Ne3....