The 24-year old has forced his way into Roy Hodgson's Three Lions squad recently but is still yet to see action for his country and after his influential performance in the 2-1 win over Barcelona on Wednesday night, is looking to make his debut against Sweden in Stockholm next week.
But Forster is well aware that you cannot get carried away with anything in football and is just grateful to be in with a chance of representing his country with the 2014 World Cup in mind.
"Celtic are getting a lot of publicity in England now and that means people know who I am.
"I've put in a lot of work, have some very good coaches around me and I'm in the best shape of my career.
"I was in the England squad for the last World Cup qualifiers and I'm in again this time which is great.
"It's been a really good few weeks and sometimes you have to pinch yourself.
"But I think I'm a fairly level-headed bloke and I know that the moment you get carried away football can bite you back.
"England is something I've been aiming for and I enjoyed getting to work with Joe Hart when we met up with the last squad. He's a great guy as is the goalkeeping coach Dave Watson.
"That fortnight was an important experience for me and, having watched the last World Cup on TV, I've got to be aiming to get to Brazil with England for the next one."