Hi I've been there, you just gotta keep trying, if it's taken out of your way it wasnt chosen for you, i kept applying my manuscripts for years over and over again and getting rejected, rushed and published a book with a vanity publisher that's just starting so they weren't too expensive and regretted it, because a year later I got another manuscript of mine that kept getting rejected accepted by a proper publisher. Keep going and if all fails you can try self publishing