wow, if there were one thing i could change about something i've done in my life, it would be to never do crack. i don't know how long you were on it, but i did it everyday for 3 years. it 'COMPLETELY' destroyed my life. i never really feel quite right anymore. by the way, i've been clean for 8 years. i suffer from depression, phobias (like leaving the house) it's just awful. before drugs i was a fun loving, hard working person. i am no longer that person. not even close. anyway, i hope you don't have the same experience i did and still do. it's no way to live. i wish you the best.
ps: the other poster mentioned: brain damamge, motor skill damage, memory impairment. these are all very true. it's awful.