The Swans play the second leg of the Europa League qualifier tomorrow with a 4-0 lead from the first game.
"We've made a lot of progression here as a club," Dyer told reporters. "I feel I have progressed too.
"I think the club can continue to improve. We have made some quality signings and the squad is very strong now.
"I don't see the club going downhill in any way, I can only see us going up and up."
Swansea begin their Premier League season against Manchester United on August 17.