From the comments below, your movie is one out of 27,000 made each year. It has a 2.2% chance of ever being distributed.
We've been extraordinarily lucky. Sure I could be a big sniff and say "It's not luck, it's hard work and perseverance my boy. Put your nose to the grindstone and you too can get your movie(s) distributed."
But it involved a lot of luck.
Talking about luck, however, isn't terribly interesting. So I'll talk about the perseverance part of it.
Actually, my first two movies didn't get any distribution at all. The second movie, Apostasy, didn't get into any film festivals at all (the first one, Hamlet, only got attention because who would actually make a Hamlet on a Pixelvision camera?)
Making, and more importantly completing a feature is vastly different from making a short. And if I'd given up after those first two movies and just decided that there was no way I could get distribution, then I'd be in the 97.8% of the filmmakers who don't get distribution. Statistically that isn't really true because that's only films made this year, but you know what I mean.
So I guess my advice to people like me, who don't get distribution with their first features, is to keep making features. It takes practice.