You are somewhat missing the point. You didn't need to win 11 in a row as you had a big lead, 8 wins and a draw would have done it I think. But you kept throwing away points either from very strong winning positions and/or against very poor teams.
If you seriously think your form at the end of the season was decent then you need to give your head a serious wobble. Yeah, you won at Newcastle when the pressure was off as you'd blown it by then (and had a bit of luck that day with the woodwork if I recall).
People were saying on here for most of the season about your club's emotional state (management, players and fans) - getting way too giddy with every game (win, lose or draw). Not being able to cope with the pressure is the very definition of bottling it.