spiritual confidence

constant internal struggle, i can literally feel my heart caught in a game of tug-o-war. honestly, many times it's difficult to decipher whether these thoughts are of my own or from God. am i making the right decision? am i doing my best in living for You? is this all that i can give You? is it healthy/normal/okay to be constantly checking myself to the point where i'm questioning my every thought and action? sometimes i feel like they get in the way of just LIVING and LOVING. i think i became so afraid of getting caught in the legalistic mode of worshiping God that i'm beginning to tiptoe my life around the world and the Bible. it's ironic because the more i've been reading the Word and praying daily, the more i'm beginning to lose my confidence and be more wary of the things i do, think and say. but this can't be right??? this isn't what i should be feeling when i'm giving Him my all.

"for the Lord will be your confidence and will keep your foot from being snared." Proverbs 3:26

where is my confidence?