The Hungarian international has recently established himself as Sunderland's No. 1, keeping the highly-rated Craig Gordon on the sidelines.
His rise to prominence this season has seen him rewarded with a new contract at Stadium of Light.
It has taken Fulop five years to reach this stage, having first arrived in England when he signed for Tottenham in 2004.
He joined the Black Cats as part of a deal which saw Ben Alnwick head to White Hart Lane in 2007, but believes he learnt more from spells at Chesterfield, Coventry, Leicester and Stoke than he did during his days as back-up at Spurs at Sunderland.
"I think my loan spells helped my career a lot," he told Origo.
"I launched a lot of loan spells myself because I wanted first-team football and to get the most possible experience. Fortunately Sunderland and Tottenham respected my wishes to go to other clubs. I've learnt the most at Coventry and Leicester.
Pride"But I was proud to become the second choice at Tottenham behind England international Paul Robinson.
"I don't think my ability to play in the Premier League was ever in question, though, because Stoke wanted to sign me last year. They agreed a price with Sunderland, which was around £3million, but the deal fell through.
"I think (former boss) Roy Keane, who said after on my arrival that I could be a first-choice keeper, knew that I could do a job once he used me."
Fulop insists he has no regrets at seeing a proposed switch to Stoke fail to materialise, believing Sunderland have provided him with a bigger stage on which to display his talents.
"I don't mind that Stoke couldn't sign me, but I didn't mind it at the time either," he added.
"I got a better chance at Sunderland. This is a huge club with the fifth biggest attendance and with one of the best sets of fans in the Premier League. It is a magnificent feeling to play in front of them.
"I'm very happy here and I hope that I can play for Sunderland for a long time."