Prayer is one of the most important factors in effective spiritual warfare. Prayer climaxes Paul's battlefield instructions in Ephesians 6. You must receive the Lord's armor from His hands. You can only be strong in the power of His might by spending time in His presence.
You have been frustrated from time to time by things you’ve seen that are wrong in your school, or your workplace, or your family, your neighborhood, or nation. There are primarily two questions here. (1) How do you cope with frustration, keeping a sweet spirit in the trial, loving people with God's love. And (2) how do you make a significant impact on things that are wrong around you. Both of these are spiritual issues. The enemy laughs when you deal with these problems as if they could be handled in your own strength.
We do not wrestle against human strength or the force of human ingenuity. We are up against the schemes of a spiritual enemy. We do not merely face human politics or earthly authority. We are up against principalities and powers, the spiritual forces of evil in heavenly realms.
And our warfare is not just defensive. We pray for the gospel to be spread, for lives to be changed, for the earth to be shaken by the mighty hand of God.