The English striker sensed he would have a chance to make his mark on the first team this season after five substitute outings last term.
However a knee injury picked up in pre-season training has put those ambitions on hold and that has been a source of disappointment for the 20-year-old.
He said: “The players that have been brought in like Dean Shiels and David Templeton are players that will find you if you get yourself in the right positions.
“So it’s disappointing to be watching but at the same time it’s enjoyable football to be watching because of the types of players that are involved.
“It was an opportunity for me but obviously I got injured again in training.
“I just need to make sure I screw my head and work hard and when I’m back I put myself about and try to get in the team.
“I’m taking it slowly. I had the operation and there’s still a bit of time left before I can jog or run but it’s getting stronger every day.
“I feel better every day and hopefully given time I’ll make a full recovery.
“I was involved last year and while I didn’t expect to be in the team I was hoping to be involved again so to get injured is hard to take.
“That’s part of the parcel of the game so I know I just need to get on with it.”
Hemmings has been encouraged by the form of fellow youth team graduates Lewis Macleod and Barrie McKay and feels he has every reason to believe he can match their successes.
He added: “You just need to look at how they have done in the games.
“They’ve grabbed it with both hands and done well for themselves so I don’t see why, if the gaffer gives me a chance, I can’t do the same.
“If I didn’t think I could play in the team there would be no point trying to get back to fitness again so when I get back I’ll be doing all I can to get in the team.”