Falloon joined the Rhinos at the end of 2015 from the Gold Coast Titans.
But Falloon was knocked out on Boxing Day, in his first game for Leeds, and then missed the first four matches of the season with a toe injury.
“It’s been really frustrating,” the forward told Love Rugby League.
“I’m not going to lie, I haven’t been in the best form either so it’s only made things worse.
“Hopefully I can regain that form, string a few games together and get a few wins.”
Falloon has made seven appearances for the Rhinos, averaging 24 tackles, six runs from dummy half and eight carrier per game off the bench. He missed Friday night’s match against Huddersfield.
The Australian has yet to score a try for Leeds but has two try assists.
Falloon said the one referee system, the different conditions, getting to know new teammates and a new style of play have all been factors in transitioning to Super League.
“It’s been different, I’ve just been trying to adapt to the team,” he said.
“Things are having place here too so it’s just about getting on the field and getting some repetitions done.
“Hopefully I can turn my form around and finish the year off really good.”
But the hooker was cleared when the case was thrown out because of a lack of evidence.
Falloon said it is nice to get away from that episode and focus on rugby league.
“It’s a good experience over here,” he said.
“The club’s been really welcoming so hopefully I can repay them and [we] start winning some games.
That’s my main priority at the moment, that’s all I’m thinking about.”