As you plan and go on the mission trip you are entering the spiritual battle zone which requires being armed with the armor of God and also the intercessory prayer power of the righteous.
Pray individually and also, pray with a team, because there is power in united prayer. Christianity is personal, but never solitary. To function fully under his direction in the power of the Holy Spirit, knowing his mind and doing his will, we need one another (1 Corinthians 12:12-26).
There is nothing like prayer to fill your heart with peace and joy as you go, for God answers prayer in a very special way.