Switching to Venlafaxine

I have really been through it the past month. I got switched to 4 different ssri within 2 weeks. Got hospitalized and then put on Wellbutrin. The SSRIs (Zoloft, Paxil, Prozac, Zoloft again) were awful and made me debilitated with anxiety and sui*idal thoughts. When I was in the hospital I was put on Wellbutrin XL and it seemed to be working alright for the first few weeks but within the last week my anxiety has shot through the roof and I became super jittery. I talked to a psychiatrist today and she’s wanting to switch me to Venlafaxine for anxiety/panic disorder. I’m incredibly nervous to start this new medication and was hoping for reassurance or to hear some positive experiences with this medication. I know some people can have negative experiences with these type of meds but right now I need some success stories to help ease me into starting this new medication.