im new i need suggestions please what do you think of my stack (first sycle)

hello there, this is my first post in the website, i really need help.

so i have a friend of my we both workout at the gym.
i am 21 years old
144 pound.
and 180 cm. i think this should be 5'10''

i been working out for 2 years, i have a really high metabilism i dont really put on any weight but i am really ripped i guess.
my friend who works out with me at the same gym been using steroid for a long time.

he is really huge, and ripped. he suggested to me to use some steroid to see result. i do trust this guy. but i wanted your opinion guys.

he suggested nandrolne deca, and sustanon (testastrone).

are those the best in the market? i read about them they seems fine but im not sure if i should go with this combination or something else.

do you guys think i should do it or not?
my goal is to go from 144 pound to (170-180) pound
but im a lean guy right now with very low body fat, and im afraid if i start using id gain a lot of water retation and body fat.

i have seen a lot of members picture and i have two things to say.
they are all too big which is totally not what im looking for. so is one scycle is good for good?

also alot of them have huge arms and biceps but it all look kinda fake!! sorry buy that how i feel about them. is that gonna be like this for long time?
are they gonna get ripped? and can they avoid that?
thank you very much
and sorry for the bad spelling and grammer, english is not my first language.

Man it feels like every second thread lately is someone too young asking about steriods...

Mate read the education threads on the young and steriods. Tell me what u think of that thread?

i did read it. im 21 not 18 my body won't grow anymore.

im about to buy the stuff. so pls if you have good suggestions wether i should do it or not, or if there is better steoid and testastrone to buy.

thanks

21 is still to young! You my advice so il give it.

Forget the steriods

Stop trusting your buddy because he is in correct.

Finally post up your diet for us to see?

And trust me! At 180cm tall and 144lbs... Your body has a lot more to grow with a good diet.

could anyone please help?

ok thank you verymuch man,

if you think i shouldnt then i wont. no need to post my diet :) ill take your word.

Just learn to eat right. And no, not "healthier". More calories, more often. You could definitely gain 30lbs in a year by following a serious bulking diet and lifting routine.