Jenas had been at Spurs since 2005 but extra competition for places in the last two seasons has meant he has struggled to hold down a regular starting berth.
He hopes that he can become a regular feature in the Villa side this season after agreeing a loan deal in order to find his best form.
He told Sky Sports: “It’s been frustrating for me being in and out, in and out and it’s almost impossible to generate any form.
“I’m still a young 28, I’ve still got plenty of energy and plenty more to come.”
Jenas added that the squad at Aston Villa and the opportunity to improve is what encouraged him to make the move from London to the Midlands.
“Obviously, I’ve still got to get into this team,” he continued.
“It’s a very good side with some very good players. That’s one of the reasons why I was chomping at the bit to get up here.
“I looked at what they had within the squad, how I would fit into that and what we could achieve and it excited me.
“I’ve got to work hard in training to try and get a starting place within this team and then I can build up my form and produce the kind of performances I know I can produce.”
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Jermaine Jenas sets sights on first-team place after joining Aston Villa