Above all else, guard your heart, for everything you do flows from it.
Proverbs 4:23 NIV
Protect yourself from hurts and people God did not send to you, but don't forget the small foxes as well...The music, movies, talk, discouragement, and any other entities that are taking a toll on our thought process. This is not to say you can't do things, but know what is hindering you... Especially if it's individuals or even our own emotions.
After, we know what's hindering us and what isn't. Even more so, protect yourself from dwelling on your life experiences...These are the things that can keep you complacent, take away your belief in God's power, cause us to utilize worldly rationalization instead of walking in truth, and prevent us from letting go and going deeper into God's guidance instead of our own plans. What are you to comfortable with? What do you keep doing that prevents you from moving forward? How do you let people effect you, instead of clinging to God?