Anabolic Steroids. Is only ONE cycle safe to get someone back into shape?

I am not in bad shape at all, but its been a pain in the *** and a good friend told me that one cycle wont do me wrong at all. there wont be any long term or short term damage, and ill be in the best shape of my life. I am very iffy about this, but very enticed. I am a 23 year old male and dont have any horrible pre existing health conditions. Is this true? and if so, what should i take? i dont feel so good about shooting a needle in my *** but w.e. will work the best I suppose.