Starting a new antidepressant?

I was on welburtin (idk if i spelt that right) but the doctor just switched me to prozac. I've never seen this doctor so she didn't really know a lot about me.. the 1st med was working great but then I started to get depressed again and it started not working as well so I had to see someone to get it upped or changed (my insurance changed so I couldn't goto my old one) I'm scared to start this new medicine because I don't want it not to work. I found one that worked for me but after 5 months it stopped working.. have any of you been on prozac before? I'm really nervous about switching
Starting a new antidepressant?
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