Pennant, who came of age in a Liverpool shirt with an excellent display in the Champions League final last season, said: "I wanted to continue the form I achieved towards the end of last season, and I feel I have done that.
"When you go to a new club like I did last season, you have to learn the way the boss wants you to play, you have to fit in with your new colleagues. Nobody just clicks straight away.
"I know my job in the team and I feel part of it now. I have confidence and I have decided to just go for it."
After victory over Derby, Pennant also said: "It is a stronger squad this season, there's two people for every position at least. We have four class strikers and any combination of those lads will get goals.
"Now it is a big squad and very strong. As for me, it is just confidence now and I am linking better with everyone.
"I am also getting my defensive work right, you have to do that even if I don't like it.
"My confidence is good, every game I play now I believe I can produce. My final delivery is good. I used to take a few too many touches, now I know exactly where the ball should be going, straight away.
"And playing against good opposition I know I have to keep producing week in week out.
"And I don't mind what wing I am on. Right or, like against Derby, on the left. I am confident I can do both jobs, and if that helps me get into the England squad, that's fine."
He added: "I know the boss said I should be in the England squad, and that is nice to hear, it is good praise from the gaffer. Maybe with a few more people behind me, I might get in.
"But I know I have to continue producing this form week in week out to be considered. Playing at Liverpool I know I have a chance.
"David Bentley has got in as a winger, and I'm pleased for him. We used to play together at Arsenal and I know he's a good player.
"When I see him next I shall be telling him he can't do what I can do, just to wind him up. But I'll be wishing him all the best, he deserves it."