I do not know if my point of view will be seen as constructive, but I’ll try.
Of course the anxiety of upcoming marriage is intense! We feel it, and we aren’t Catholic or Christian, or even theists. But we do know very well the wonder of knowing and loving each other intellectually and emotionally, without physicality as a necessity, since we did that for years. Of course, once we kissed (the shock of it!), well, we knew it was for life.
We had already been over all our understanding, of politics, religion, finances, children, and so much else, in depth and detail…but abstractly, since we had not consciously acknowledged our physical love, nor felt any need to then. Once we knew our intentions, we have gone over those issues again and again, at exhaustive length, since we want the best for our future and our potential children.
But yes, as Catholics, you are supposed to wait and keep chaste. What I mean to say is, it is no small sacrifice, yet if you can keep to it, the benefits can be so worthwhile. I can’t speak as to anything like ‘eternal bliss after death’ or any of that, but please do take this time to know each other, to the very depths and heights of your being. It is not only correct by your faith, but wonderful fun, if you’re doing it right!