Australia Women were defeated by seven wickets in the T20 match of the multi-format series .
"We started off the series quite well but unfortunately we haven't quite been there in the last few games and England have played really consistent cricket. There's a lot that we've learned,” Fields said after the match.
"To be honest, it's a lot to do with self belief and confidence because we've done the hard work and we came here the fittest we've been post-World Cup,” she added.
"Sometimes you've just got to get out in the middle and back the skills and ability you've got and I suppose, for me, that was what was missing."