The 21 year old Ghana international has started just eight matches this season.
"Of course it is frustrating for any footballer to be forced to watch from the stands. I do not want to experience that any longer.
"You have to get used to the Premier League and a big club like Chelsea first when you are a young player like I am, so the first half of the season was alright.
"But I definitely want more playing time in the second half of the season."