Hurt to the point where we have so little left to fight our way out of this mess.
When we lose - all the time, and frequently in a spineless or stupid way (Burnley, Brentford)
When we deserve so much more from the officials (with the game on the line - even handed decision making, the odd penalty, the same attitude to red card calls for Shelvey etc as with Allan, Keane etc - the same officials backing down when they have similar decisions in other matches - and don't even get me started on protecting Gordon.
When teams as bad as Burnley get gimme home games against not-arsed Southampton and Wolves after being totally rubbish all season
When key players get injured - DCL, Mina, Davies, Doucoure, Gray, Townsend, Godfrey - sometimes moments before the game and we've been missing our singularly most productive player all season for non-footballing reasons*
When players fall out with managers we shouldn't even have appointed in the first place to replace a manager we might not have lost under other circumstances.
When VAR letting us down (Spurs, Brentford, City, today...)
*clearly this is a serious one one shouldn't dwell on but, well, unlucky Everton you might say.