How can I make my parakeet like me?

  Within the first few weeks that I bought her, she would let me take her out of her cage and play with her .. Now, she flies around like a madman if I even go to stick my hand in her cage .. Nothing traumatizing has happened to her that I know of .. Unless weekly baths and occasional wing clipping is traumatizing for a bird:/What can I do to get her to be comfortable around me again?
A piece of advice: START SLOW. Each day , do things step by step to be "closer" with her, don't get too close too fast. It's all about trust-and you can help her trust you with food. Next time you feed her, maybe put the food in her feeding container while she's in the cage (if that's possible) so she knows that your hand means "nurture" instead of "grab and hurt".
First of all she is new to a home and needs to get used to things such as your hand coming in the change to change her food and if you just stick you hands towards her she is gonna freak because she dont know your friendly or anything.Just wait untill she is comfortable around you and stick your hand in the cage and take all the food out the cage and put treats and slowly lift you finger up her belly.This routine has worked for me and all my birds are friendly with me and hand tamed.
there is know way to Make a Bird Like You. Under most circumstances they either like you or don't. Your bird may have just tolerated you before, but doesn't anymore. I had an african grey, my husband could do anything he wanted w/him and he was fine , but I could only pick him up at certain times or day, or in certain spots in his cage. But after a while, he wouldn't let me get anywhere near me .... He would launch himself off my cage to attack me if I came w/i 3 feet of his cage. Birds are picky little buggers, He may just not like you. I wouldn't take it personally, its just the way they work.
It's natural for a bird to be nervous at first. When you change her food and water just talk to her calmly and kindly. An occasional piece of millet wouldn't hurt either!: D
be patient