The 22-year-old recently returned to training after spending last month on the sidelines with a number of fitness issues.
Forrest is now eager to put his health troubles behind him and get a run of games in the side.
"It's just been bad luck getting not well and having a wee niggle here and there and I just need a wee bit of luck now to get a run of games," he told the club's official website.
"We have a lot of big games left and once all the boys are back on Thursday and Friday we can look forward to the next few weeks.
"When you haven't been well, you don't want to come back and do too much, so it's been a good wee break and I have been able to do some hard work."
Forrest has scored two goals in nine matches for Celtic during the current campaign.