Zoloft!! please anyone on this medication for

anxiety ocd panic disorder...i feel like im at the end of my struggle with this and went to the doc today...he gave me zoloft...because im scared of everything ...im scared to take it...my anxiety feels like im going insane before my period is due....after my period i can cope better...but still have anxiety and panic ocd...i know people have mixed opinions on medication...i was on effexor years ago...and it helped ..but gained a lot of weight and the withdrawls were hell...since my anxiety has increased 100 percent over the yrs...is why im scared to try the medication...im just scared they will send me into a luney rage..or uncontrolable outbursts or something...i dont know ...is anyone out there on this drug..did it help you or make you crazier....thankyou for your time