you got it...methylated orals in particular are directly toxic to the liver, drinking alcohol while on cycle will place excessive strain on this organ and is simply dangerous...you will find this probably to be one of the top "errors" made by users while on something hormonal- but many assume that their liver can handle the damage and drink anyway but fail to realize the alcohol itself will hinder gains while on cycle...waking up with a hangover is usually an implication your cells are extremely dehydrated, meaning your muscle cells have been flushed & deprived of many vital nutrients, therefore leaving one in a prologned catabolic state
i would say another big problem i've seen with users is underestimating the importance of pct...sooo many lifters @ my gym talk about how "they are fine without taking anything post cycle & didn't lose any gains"...and you know what, some of them get lucky but doing this just leaves your body open to so many variables (estrogen rebound-->delayed gyno, prologned shutdown, hormonal imbalances)...
i'll also throw this one in bc ive seen it plenty and i really think one shouldnt even begin a cycle until their diet honestly is in check...being younger & reading this threads i remember rolling my eyes at people who were so serious about the importance of dieting, but truth is it really makes all the difference...if you are going to take a cycle, declare your goal (cut/recomp/bulk) and then adjust ur cals/carbs/protein/fat accordingly...i cant tell you how often i overhear people saying this hormone was "garbage" & i didn't get huge off of it like i expected, the diet is what is going build you up, the hormone will only help you if you give it the fuel it needs to build