James Anderson says he needs to improve his one-day game further despite his devastating display in the first ODI against Sri Lanka.
Anderson took 4-18 to help England to a 110-run victory over the tourists at the Oval on Tuesday.
But, although he is the first-choice seamer in England's the Test side, he has struggled with his consistency in the limited-overs arena.
A series of poor performances saw him left out of England's World Twenty20 campaign last year and dropped during the recent World Cup.
But he bounced right back to demolish Sri Lanka's top order in the opening ODI, removing Tillakaratne Dilshan, Mahela Jayawardene and Kumar Sangakkara in his first three overs.
"It was a frustrating winter in the one-day form, for the team and for me personally," he said.
"I felt like I'd personally not performed to the standards I'd set myself. I was very frustrated and disappointed.
"I was just glad to keep my place in the squad and to get a place in the XI. I was happy to get some wickets but I thought we bowled well as a unit and they could have gone to anyone, luckily they went to me."
Now Anderson is determined to keep up the momentum going into the second one-dayer at Headingley on Friday.
"I'd like to think it was just tiredness but whatever it was I've put it behind me," he said.
"I did that at the start of the season with Lancashire and then in Test series.
"I've worked really hard but there are a lot of improvements I have to make to my one-day game and I've started to do those things.
"It's nice to get the series off to a winning start and we're hopefully going to use this as a springboard to move on from here and improve even further."
Anderson was also full of praise for Surrey seamer and ODI debutant Jade Dernbach, who grabbed a brace on his home ground.
"I thought he slotted in fantastically well," said the Lancashire paceman.
"He brings something different, has some good tricks up sleeve and he's got a lot of confidence.
"I didn't really see any sign of nerves. He settled in really well and put in a really solid performance."