Christians, what have been some of the difficult 'lessons' you feel you've had to learn...?

that its hard to change from i what wanted to be to what God wants me to be. when i first started to believe, i didnt want to believe. it meant that i could no longer do or say whatever i wanted. i had to be patient and kind. for some1 with the tendency to pimp-slap 300lb bouncers for asking me for an id, thats not ez. i LOVED fighting and doing things people shouldnt do AND i was smart enough to get away with it, but i knew deep down inside that its not what God wanted. He didnt force me or scare me into changing. it was more like a "waiting for me to grow up" kinda feeling. i cant tell u how much i miss solving my problems with violence sometimes. it scares me. but i know God is there supporting me. PS i kinda got a good laugh from an atheist a couple of nights asking how we'd be different if we didnt believe in God. i think God changed me for them more than He did for me. lol weird right? 1 of the guys i used to hang out with confessed he planned to kill a few of his friends (me included) b4 he found God. this was 8 years ago. now he's a preacher and is married with 2 kids.