Chris Iwelumo insists he will bounce back after he missed the chance of securing Scotland a crucial win in their World Cup qualifying game against Norway.
The Wolves striker was thrown into the action 10 minutes into the second half in a bid to salvage the hopes of the nation.
But the 30-year-old missed the target completely after Gary Naysmith delivered a perfect ball across the face of goal to Iwelumo, standing just yards from the open net.
It was a nightmare start to an international career which has been a long time coming, but Iwelumo insists he will strive to improve.
"I'm obviously gutted," said Iwelumo. "I had a big chance and I should put them away so I'm disappointed. I just have to bounce back and keep positive.
"I was confident and I put my foot out and it hit the heel. I'm gutted. But it's gone now and I've just go to move on.
"I'm my own worst critic and it's definitely something I'll be thinking about. But I'm a big character and I'll take that one on the chin and move on."
Despite missing the clear chance, Iwelumo is determined to take some positives from his debut.
"It was fantastic," he added. "That's what I'm about, I'm a target-man and I think I'm quite mobile as well.
"I'm there to win headers, link up play with others and make the ball stick and I think that part worked pretty well today.
"It would have been nice to top if off with a goal though."