Praying the rosary is not a biblical prayer and I would suggest you read the bible and pray the prayer Jesus taught us. Notice Jesus asks us to pray Our Father - Your will be done. We pray our Father's will be done regarding you and your marriage, and we pray our Father will be your strength and comfort during this difficult period of your life.
Matthew 6:9-15
New International Version (NIV)
9"This, then, is how you should pray:
" 'Our Father in heaven,
hallowed be your name,
10your kingdom come,
your will be done
on earth as it is in heaven.
11Give us today our daily bread.
12Forgive us our debts,
as we also have forgiven our debtors.
13And lead us not into temptation,
but deliver us from the evil one.
[a]' 14For if you forgive men when they sin against you, your heavenly Father will also forgive you.
15But if you do not forgive men their sins, your Father will not forgive your sins.
Footnotes:
1. Matthew 6:13 Or from evil; some late manuscripts one, / for yours is the kingdom and the power and the glory forever. Amen.