theres absolutely not a "safe way" of using steroids, there are a lot of secondary effects on it , everysingle body works on his own way , steroids might be more harm in one body than in a second one , obviously its not a thing that u take then u die lol , but u arent gonna get rid of the secondary effects with a doctor next to u
dude , u are putting f@#!ing extra hormons on ur body , thats a bomb to ur metabolism
there are always diferent ways (and more healthy)
i know about this cos i had this "muscule man" stuff on my head for a while (5 month or so xD, gimn etc..) and i looked for lot of info about steroids and another stuff to make ur body big , asked to my doctor (and even mom , she is a nurse) , the guy who used to watch me and tell me what to do told me kinda the same , but he was ok about the using of steroids xDDD (over ~25 years tho)
and im a science man xD i love biology , dont know everything but enough about it