"Mistakes are proving very costly. It's only a matter of time before hard work turns all that around and the losses become draws and draws become wins."
The Australian captain moved to Goodison Park on a free transfer in September after leaving West Ham when his contract expired at the end of last season.
Neil says despite a bright individual display himself, he was deflated after his side were defeated.
"We got off to a start that wasn't to plan," Neill continued.
"But we showed good character to get back in the game and I suppose the feeling was that we were going to go on and win it.
"But a little bit of naivety and a couple of simple errors and you get punished at this level. That's what happened today and it's something we'll analyse and look at and make sure doesn't happen again."