Was on it for about 6.5 years starting at around 15, on 10mg for general anxiety and depression. I'll admit, it helped somewhat. After maybe 4 years it's effectiveness was dropping, so they put me up to 20mg. Later, up to 40mg. What took me years, was to realise is it was making me gain weight, which made my anxiety progressively much worse. Went off it last year when it eventually stopped having any affect at all - besides making me a fat fuck. (now 95kg, 5'6" tall). I'm now very slowly losing it, thank fuck.
I briefly tried Citalopram after going off the Fluoxetine, but found that was also a "fat cunt med", and more importantly, I realised it was only making me vaguely numb. The source of my suicidality is situational. Numbing myself with meds is exactly what society wants from me.
"It is no measure of health to be well adjusted to a profoundly sick society"
-J. Krishnamurti