Jones was brought to the club by Roy Hodgson in the summer of 2010 only for the manager to be sacked six months later.
"It feels like a totally new start, starting with a clean slate," said the 30-year-old.
"I have got to a point where, professionally, I have to move on and I have less things to worry about this season. With a new manager coming in you had to prove yourself all over again and it is something which I feel has gone well.
"The new manager involves me a lot more - obviously it was difficult last year - and I'm hoping the manager has been happy with the way things have gone and the way I have trained and played in the few games.
"I feel I am in the best place possible to perform to my best - whether or not I can challenge Pepe all I can do it my best. For me personally I have always tried to train my hardest and do my best but there was a difficult time when other things were getting in the way and football took a back seat.
"But I think now I am probably training the best I have done for the last few years and if I get opportunities I will be looking to take them."