The 21-year-old recently signed an extension to his contract, keeping him at the Riverside until the summer of 2015.
"I need to kick on now," he says. "I've a lot more to show. I don't think anyone has seen the best of me yet. I'm still young and I'm still learning every single day alongside top-class professionals."
Halliday admits to be relieved that talks over his future have been concluded - not that he was in any doubt where he wanted to be.
"If you had asked me earlier in the season when I wasn't playing, not featuring anywhere, then it might have been different," he said. "I think that's only natural. But I've started to play more (18 games so far this campaign) and if I had to use one word to describe signing the contract it would be 'relief', to be honest.
"I'm happy to commit my future to the club. It's been a long process and I'm glad it's all sorted. I'm settled in Teesside and happy here. The fans have been excellent with me. The support I've been getting everywhere made the decision to stay a very easy one.
"Now it's down to more important matters, like getting three points at Wolves."
The game at Molineux a week on Saturday pits together two teams desperate for three points. With time running out, there is little room for error from either side as Wolves try to stave off a second successive relegation, while Boro need to keep within touching distance at least of the play-off positions.
"It has been a strange season," concedes Halliday, who has converted from an attack-minded player to left-back during the past few months.
"Thankfully I've started to improve my defensive work and I've quite enjoyed that, but from a team point of view and for the fans it has been a real mixed bag. It's been upside down from last year in terms of our home and away form and maybe that is because they have turned out in bigger numbers that last season and that has helped.
"We're really grateful for that and we need to give them a reason to come back. Everyone here, trust me, is working so hard and wanting to push on. These will be a massive eight games. What do we need? Maybe 21 points, could be 18, who knows? But one thing is for sure, we'll be giving it everything."