When you are ready to make a commitment to another person, to work together in life toward your common purpose and happiness, then it is time to get married.
You know the saying ' there is no time like the present,' that is because the only sure time we have on this planet is the present, right now.
Will the marriage work. As long as the commitment is there, yes. Some times it is even the right time to get married in your 40's, 50's, 60's, 70's or even 80's. I think it is just silly to be getting married in your 90's or later, but I read a story in the local newspaper recently about a couple who did this. They had lost track of each other when younger, survived the loss of spouses and become reunited years later to be married while in their 90's.
If its a marriage on earth it will face difficult challenges, but life comes with no guarantee. So be strong, and in the words of Chuck Berry remember, 'you never can tell.'