The Celtic keeper was part of the first-ever Hoops side to win away in the Champions League, then found himself called up to the England squad for the matches against San Marino and Poland.
The 24-year-old Geordie wants to round things off by winning against Hearts on Sunday, and continue on this high before he joins Roy Hodgson's group.
"It's something I have aimed for and worked towards and I'm just delighted," he said.
"It probably won't sink in until I have been there and done it, though. It's a great opportunity and a great chance to test myself against some great players.
"I think it's recognition for the work we've put in and our performances."
Forster knows he owes a huge debt of gratitude to Celtic goalkeeping coach Stevie Woods for improving his game, and is mindful others have also played their part.
The former Newcastle United keeper who includes yoga in his daily work-outs said: "The gaffer has really pushed hard for me to get in. Woodsy has been brilliant along with Kenny McMillan with all the sports science stuff.
"Everyone has been really pleased for me, and the other keepers have been brilliant as well. We have a great group here."