What I was taught to do, but it’s completely optional, is to offer our intentions before Mass, such as this:
Father, I offer this Mass for the intentions of the celebrant, those in attendance, our loved ones, those recommended to our prayers and those for whom we have promised to pray. I desire to participate in this Mass with ardor and devotion, therefore, I ask your mercy, forgiveness and help. Amen.
After receiving the Eucharist I give thanks and ask for the graces of the sacrament.
After Mass, I thank God for the joy, privilege and freedom to worship him in spirit and in truth, to have heard his word proclaimed, and to have received the body and blood, soul and divinity of Christ, his Son, Our Lord. I then ask that the graces I received might enable me to be holy and do good in love. I finish by asking for the intercession of Mary, St. Joseph and the saints and angels to aid me in my intention to do God’s will.
Having written all that, whatever helps you or however you feel moved to pray is just fine. But, it does help to have some type of form/template to follow, as long as the form doesn’t overwhelm the substance of your prayers.
