You can and should marry your wife again.
You can and should get baptized again.
Discussion
But... why?
Renewing vowels is powerful.
I can imagine renewing commitment to life in Christ is, too.
Baptism is a symbolic sacrament …. God doesn’t forget…. No need for a redo. His mark is on you from the first time as a covenant child
Yes. My husband and I were not in the faith at the time of our marriage. Now we are growing together with God and want to renew our vows in the future, because our lives are completely different. I think it can be important to renew vows as you’re both changing together.