This has a nice minor key feel to it, and you're right. A part of it is that strong V-1 pull. But maybe you should reduce the number of these cadences a bit, so that when they do happen they will have a greater impact. The listener will appreciate them more. A few tricks I do when experimenting - and that's what Danish and Sojar have suggested - is transpose. Take it out of the key. Do it in chunks or phrases. Like if you have vi-ii-V progression, you could transpose on the vi, the ii or the V. Now the listener is off. He doesn't know what you're doing. But if your melody is good, he's interested, he's invested. The feeling is still elegiac, and he's confident that you're confident that the tonic will arrive after a spell. And if you do that much, and can repeat it, Man, there isn't anything you can't do. I think perhaps you didn't trust yourself enough to go out of the key?