The Toffees boss is preparing his side to face Chelsea in the Cup quarter-final on Saturday.
Everton have been struggling in the Premier League and their European hopes look slim.
They have dropped numerous points from leads and lost seven home games so far this season.
Martinez said: “I just feel we need to take all the pain and experiences we’ve had throughout the season and now get our reward.
“You work really hard and when don’t get rewards you deserves it’s painful.
“Sometimes have to accept opposition better than you but in our case we see the potential, it’s a new team and group and our experiences will give us chance to get good results.