The Wales striker believes he has strengthened his case for a place at Euro 2016 with performances for club and country.
At the start of February, Church took the decision to swap MK Dons for Aberdeen and gamble on regular football in Scotland boosting his ambition to make the Wales squad for this summer's European Championship.
The 27-year-old has responded with five goals in nine games, including the opener against Hamilton on Sunday as Aberdeen chase Celtic in what a closer title race than usual.
"I had to be selfish at this stage of my career," Church said of his loan deal until the end of the season. "It wasn't really working out for me at MK Dons and I was grateful for them letting me go.
"It was a difficult decision to leave the Championship, but they're in a relegation fight and it's a great opportunity to be fighting for the title at Aberdeen.
"I've had a bit of a stop-start career and I just felt I needed to play football, especially with it being such a massive summer for everyone.
"It's a different league and a different challenge, but it's been a nice transition and it's gone well.
"Hopefully this helps [Euro 2016 selection], but I've been with the squad and the manager over the years," Church added.
"Playing regular club football is only going to help me and I don't really worry what's going on elsewhere. I can only control what's going on with me. Every time I get a chance I try and take it.
"We're all in the same, there's a lot of of competition for places and that shows how talented the squad is.
"You're always pushing yourself, because you know what an exciting time it is for Welsh football."
Source: Sky Sports