Chord alterations

So I'm writing this song. I begin with I, then IV, but I decide to make IV a 7 chord instead of maj7, then I go I, and V, but I don't make V the dominant fifth, but a maj7. When I go to the relative minor, I decide to make it a major chord instead. I don't think I'd come up with those ideas if I weren't working in a key that's new and weird for me.