Alastair Cook wants to kick England's losing habit when they take on Sri Lanka at The Oval on Thursday, saying: "The summer starts now."
England were beaten by the tourists in Tuesday's one-off Twenty20 international, and the teams will now play a five-match one-day international series.
Cook takes over from Eoin Morgan as captain, and he says that England must begin to put their miserable winter behind them.
The 5-0 drubbing in the Ashes was followed by further defeats in the shorter formats, then an early exit from the World Twenty20 where they were humiliated by the Netherlands.
Cook concedes a victory in the sprint format would have been preferable, but believes there were nonetheless encouraging signs on the way to a nine-run defeat.
"Any time you win is good. But credit to Sri Lanka - they played very well, and we couldn't quite get over the line," said Cook.
"At the crucial moments, we didn't quite get our skills right - whether it was with the ball, bat or fielding.
"For 85, probably 90 per cent of that game, we played really well. Maybe (it's) the habit of not winning many games of cricket recently.
"These are games which - when you're flying, as Sri Lanka are as world champions - you find a way of winning.
"It does help when you've beaten a side. Certainly in our camp, you'd feel a lot better.
"When you're on the end of a loss ... with a few different players coming back in ... you won't look too much into the Twenty20 game. But of course, we would like to have won it."
Cook wants to move on quickly from Tuesday's defeat, and start winning matches again.
"I think getting going are the right words," he said.
"Since Australia, it's been a long time - and we just want to get out there and play some cricket, and start whatever's going to happen, the journey of the next year or so.
"It's a bit weird. You turn up and train with half the guys, because the others are resting from Twenty20.
"Against Scotland, we put in a decent performance. But the summer starts now."
"No-one has a divine right to win any game of cricket. You have to earn that right. Sri Lanka are an incredibly dangerous side with some talented players. We are desperate for a good performance."
Cook, James Anderson and Gary Ballance come into the England squad for the first three ODIs, with Alex Hales and Moeen Ali the men to make way from those on T20 duty.
Sri Lanka are led by Angelo Mathews in ODIs and have experienced duo Mahela Jayawardene and Kumar Sangakkara - both now retired from T20s - back in the ranks for the 50-over action as part of a 16-man squad.
England squad: Cook (capt), Anderson, Ballance, Bell, Bopara, Bresnan, JC Buttler (wkt), Carberry, Gurney, Jordan, Morgan, Root, Tredwell, Woakes
Sri Lanka squad: Mathews (capt), Thirimanne (vice-capt), Dilshan, Kusal Perera, Sangakkara, Mahela Jayawardene, Chandimal, Priyanjan, Senanayake, Mendis, De Silva, Malinga, Kulasekara, Thisara Perera, Lakmal, Prasad
Watch England play Sri Lanka live on Sky Sports 2, with coverage from 12.30pm.