Batsman Alex Hales says he felt inhibited during the World Cup and fearful he would be dropped by the England selectors if he was dismissed playing in an attacking manner.
Eoin Morgan's side failed to qualify from the first stage of the competition and have been criticised for their lack of aggression.
"I have had that little bit of fear that I cannot hit an attacking shot or get out in an attacking way, in case I am dropped for the next game," Hales told BBC Sport.
"I have been in and out - playing the odd game here and there, then dropped, then back in. If I was backed and given a run I believe I can succeed."
|Alex Hales's ODI career|
|Nine matches||Average of 21.11|
|Strike rate of 77.23||High score of 42|
The 26-year-old Notts opener was recently ranked as the best Twenty20 batsmen in the world, and is still rated in the top three behind India's Virat Kohli and Australia's Aaron Finch.
In the shortest format of the game, he averages 38 at a strike-rate of 138 and his form has earned him contracts in the Big Bash competition in Australia.
However, he has struggled to pin down a place in the England one-day side, making nine appearances from 24 one-day international matches and averaging 21.11 since his debut in August.
England failed to make it through the group stage of the World Cup in Australia and New Zealand, with Hales featuring only twice in six group games.
He played in the 15-run defeat by Bangladesh, and contributed a score of 37 in a win over Afghanistan.
"The biggest thing I have learned from the World Cup is to play your cricket with no fear," he added.
"As a team we have got to get rid of that mentality completely and attack in the middle overs and have no fear of failure.
"You look at the four semi-finalists, the four best teams, none of them had any fear in their cricket."