I am also a former Catholic and I believe that the covenants you make are those that make sense at the time and that we all grow and evolve . . .maybe look into your heart for your true answers, not outside of yourself at a doctrine that is manmade . . .
On the other hand, I took a vow one time to save my grandson as a baby and it has been the hardest thing to let go of . . .so I know how deep those vows can be.
Pray about it?