Fletcher joined West Ham from Manchester United last summer, after turning down interest from a number of Championship clubs.
The 21-year-old striker admits that when he first moved to the Hammers, he expected to have to bide his time for first-team opportunities.
However, Fletcher has made a big impact at West Ham - and he has already 10 appearances for Slaven Bilic’s side.
“I couldn’t have asked for anything better,” the youngster, who is still waiting to open his goalscoring account for West Ham, said. “I came thinking that I would hopefully be a player for the future but that if I impressed I would get my chance.
“I scored a few goals in pre-season and the manager, Slaven Bilic said, ‘You’re not going anywhere. I want you to stay with us and be part of the senior squad.’
“That was a huge confidence booster for me and since then I believe I’ve been involved in every match-day squad except the first one against Chelsea.”
Fletcher could feature for West Ham later this evening, when they take on Manchester United in the EFL Cup quarter-final.
Bilic has suggested that he will make changes to the Hammers’ team for the fixture, and Fletcher could be in line to start.
When West Ham and Manchester United met last weekend in the Premier League the match finished as a 1-1 draw, with Diafra Sakho and Zlatan Ibrahimovic scoring the goals for their respective sides.