With his first and second choice keepers out, Sir Alex Ferguson was forced into thrusting Amos into action in the 2-0 win over Stoke City, and the youngster is now keen to impress his manager during his time in the spotlight.
"I have been waiting a long time for an opportunity this season and thankfully it has come," Amos said.
"I feel I am ready to play at this level and it has been kind of frustrating that these chances don't come around.
"But you have to be ready when something like that happens and you are thrown straight in and I like to think I made the most of it.”
Despite the Stoke clash being relatively quiet for the young keeper, he claimed that he was determined to stay calm and not chase after the ball.
"In a sense I wanted more to do but then there is a temptation to go and chase things," he explained.
"You see a lot of keepers with not much experience who try and make an impact, which there is no need to do. That is what I had in my head and I think I got that right.
"Obviously I wanted to be positive with any decisions."
"All I can do is keep a clean sheet and play the best I can when I get a chance, you have to do the best you can.
"It is the manager who makes the decisions and all I can do is put pressure on the other two any chance I get."
United are suffering with a growing injury list, with 13 players currently sidelined, but the absence of De Gea is expected to be a short one and he could still feature against Chelsea.