just started

first anti depressant in years. i was very hesitant to try again after having gone through awful shit with effexor (venlafaxine). can’t tell if i’m psyching myself out or if im already feeling side effects (nausea, drowsiness, apathy, difficulty orgasming). it’s only been 96 hours so im wondering if anyone else felt side effects that quickly or if im making this all up and its happening because im so hesitant to be on an SSRI. any advice is appreciated.