Keep a clear head.  What does that mean biblically?  Discover how God's Word equips you to free the illusions in your life and free you from things that drag you down, both of which keep you from doing what God has called you to do.

1 Timothy 3:10-4:5 (EHV)

10But you have faithfully followed my teaching, my way of life, my purpose, my faith, my patience, my love, my steadfast endurance, 11my persecutions, my sufferings—the kind that happened to me in Antioch, Iconium, and Lystra, the kind of persecutions I endured—and the Lord rescued me from all of them. 12Indeed, everyone who wants to live a godly life in Christ Jesus will be persecuted, 13while evil people and impostors will go from bad to worse, deceiving and being deceived. 14As for you, continue in the things you have learned and about which you have become convinced. You know from whom you learned them 15and that from infancy you have known the Holy Scriptures, which are able to make you wise for salvation through faith in Christ Jesus. 16All Scripture is God breathed and is useful for teaching, for rebuking, for correcting, and for training in righteousness, 17so that the man of God may be complete, well equipped for every good work. 4:1I solemnly charge you in the presence of God and Christ Jesus, who is going to judge the living and the dead, and in view of his appearing and his kingdom: 2Preach the word. Be ready whether it is convenient or not. Correct, rebuke, and encourage, with all patience and teaching. 3For there will come a time when people will not put up with sound doctrine. Instead, because they have itching ears, they will accumulate for themselves teachers in line with their own desires. 4They will also turn their ears away from the truth and will turn aside to myths. 5As for you, keep a clear head in every situation. Bear hardship. Do the work of an evangelist. Fulfill your ministry.