The 19-year-old has started in six league games so far this season and was recalled to the starting line-up in Tuesday's 5-2 victory against Harrogate after Junior Brown was ruled out with a thigh injury.
O'Malley joined the Iron's Under-23s from Huddersfield Town in July 2019 and went on to captain the side, and it was only in August that he made his professional debut for the club in a penalty shootout defeat against Lincoln City in the EFL Trophy.
Speaking to iFollow Iron, O'Malley said: "If someone had said I was going to play 10 games this season, I'd have probably snapped their hand off.
"Now that the opportunity has come, I'm looking to better that - can I double that? Can I go on to get more starts?
"There are a lot of games this Christmas. I think there are seven left now in December and hopefully I can get myself involved in as many of them as possible."
The Iron's first-ever visit to the EnviroVent Stadium proved a good start to a congested period, and the defender believes the three points added further belief to what was already a confident mood in the squad.
He said: "It's always good to get a win but when you're scoring so many goals it means it's an excellent win and agood team performance.
"I think we can take a lot of confidence, not just from that game but we're obviously building momentum from the four or five games that we played before, getting some wins and picking up points and we just need to take that into the games coming up.
"I think that we were ruthless. At times, some of the boys said the pitch wasn't the best to play on, but when we did get it down, we showed the quality we do have."
The challenge of picking up back-to-back maximum poins and a long-awaited home win is no easy one against a Leyton Orient side who have won three on the trot.
He added: "We've been really good away but it's time to get some wins at home as well and hopefully we can start that off on Saturday.
"It's going to be a tough one, but we're also a team that's in-form at the minute. There are no easy games in this league, but obviously we are out there to get three points."
Looking to make a lasting impression, the teenager is keen to make himself a weekly name on the teamsheet and he has aspirations to impress going forward as well as defensively - something that was recognisable with his link-up play with Tuesday's star man Abo Eisa.
"I think it's just about taking that chance, to play the best that I can and just keep my place in the team and giving the manager no choice really but to put me in that team," said O'Malley.
"It's good to get that chemistry going with the winger, whoever it is on my side, and sort of knowing how he plays and trying to bounce off each other and create a good chemistry.
"Hopefully, I'll get some goals and pick up some assists, that's what I'm there to do - pick up the ball in those areas and create some chances."
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