The striker has suffered a frustrating start to the season after picking up a groin problem on our summer tour of Scandinavia but he is finally back in full training and approaching full fitness.
The injury was harsh on Armstrong not least as the battle for places up front started to hot up with the arrival of Sergei Rebrov and return to fitness of Les Ferdinand.
Just as frustrating was how the injury stopped Armstrong building on his storming finish to last season when he scored nine goals in his last 13 Premiership appearances.
He admitted: "It's disappointing to be injured at any time but especially during pre-season when you are trying to regain fitness.
"You can't dwell on it though. You have to look forward, be positive and try to get fit. Once you're fit you can take it from there.
"I've got used to it pretty much now because I've had to deal with quite a few injuries. It can be a bit hard at times but you have to be positive and look to getting back and that's what keeps you going.
"At least the groin is coming along well. There has been no reaction so far and I've got a couple of decent training sessions under my belt so I'm looking to play a full reserve team game in the next week or so and take it from there."
Armstrong has also had to sit and watch as manager George Graham opted for an exciting tactical approach of playing three strikers in Rebrov, Ferdinand and Steffen Iversen.
"I would love to be involved in that," admitted Armstrong at Spurs Lodge. "Hopefully once I get a full match under my belt I'll be able to push back for a place in the squad."
Chris Armstrong has drawn on previous experience to cope with his latest injury-forced absence.