Before Mass, I pray for the grace of being open to the things Jesus might want me to hear during Mass and the grace of being present (and not a million miles away). Then I might ask for God’s assistance with certain intentions. Then sometimes I just “be”. Jesus sometimes speaks in that stillness.
If I get there way early - which I’ve been making an effort to during the week - I will pray some of the Morning Prayer from the Liturgy of the Hours. Usually I don’t get through all of it before Mass starts, but it is nice to pray the Psalms or read the reading in the presence of the Lord.
After Communion, I take that time to ask Jesus to help me bring His presence to the world. I also ask His blessing on those closest to me - family, friends, priests, etc. That time passes way too quickly. The past few weeks, Father has been leading the congregation in prayer during the period of reflection (after he returns to his seat). I think many thought of that time as just a “delay” because most pray when they return from Communion. The first week or two, he offered the prayer aloud (it was beautiful) thanking Jesus for His gift to us. Last week, he said a few sentences, relating the Eucharist to his homily, and then invited us to speak to Jesus in the silence of our hearts.
Too much info?
This helps a lot. I’ve been doing pretty much the same thing, I just didn’t know if it was customary to add any other prayers. 