depends, if you are powerlifting than it's probably fine. otherwise, diet is 90%

i did that at one point in time...like my first 6 months of lifting. when i was 19! lol

I wish I had your size at your age. Big boy with a lot to work with. I couldnt help to think when I read your Post that it was kind of a joke and that you knew right from wrong but wanted to see what comments you would get.
PLEASE dont take that as condescending- that is not how I want it taken.
I am being honest- when I read it I thought you were joking- especially since the post was littered with 'lols'
Im a bit older now, but when I was a few years older than you, I experimented with some sust preloads. I was a shrimp! no muscularity, no nothing. 5'10 190 with a bird chest and belly- can you imagine? lol
Ate only 3 meals a day at best (all shit) but I grew. The funny thing is after 3-4 weeks if sust 250, I actually lost weight went all the way to 177ish. But I do remember very very clearly going into the bathroom in the gym to get some water and taking a quick look in the mirror and nearly started to cry with a very gratifying emotion because I saw such a difference you would NOT beleive! Even though I was still only doing 50lb incline dumpbells (and they were fucking HEAVY man!) coming from the shitbag body I had up to then was nothing short of miraculous.
Needless to say, I WAS hooked- so hooked I raced back to my buddies house and tried to buy his last 3 Sten amps. He wouldnt sellem so I forced him to by giving him $50 per. - No kidding.
It was only THEN that I began to STUDY STUDY what I was about to embark on. This was Pre-internet sites like this. (95-9697)
I then loaded up on all kinds of gear. Lifted like a freek and ate like a blue whale. Never ate good, but I ate alot.
Went from 177 to 212 in the period from mid winter to end summer.
So- you dont have to eat right...BUT why the hell not. Its healthier and youll see tons of benefits.
Im a little older now, lil smarter and want to do it right.
Words of wisdom though- LEARN from the elders on this site. Dont need to re-invent the wheel. These guys already did that.
Lastly- no matter what- do take bloods and make sure if you do do gear, that its real.
Im 40 and will be on maintenance TRT for as long as I can still see the needle go into the bottle. All because I was either in to big of a fucking hurry or some jackass bought fake shit and crashed his body.
Good luck

IMO 10lbs clean beats 20 dirty... its not the gains you make its the ones you sustain that matter

If you really wish to lose weight, you need to start with healthy eating habits or else your workout efforts will remain futile.

if you dont have diet you wont get ripped but you will gain mass you will look big but your gut might suffer but i have seen guy do this all the time in the gym still looks decent but could be better.

I quess you can eat what ever you want and gain but why jeparodize your health. Eat whole foods as much as you can and dont touch that processed crap unless you have to. I was on an MRE diet and was making gains but I cant say I felt healthy. Eat good food and feel good and do good. Even though you have to eat a lot of healthy food to get the amount of calories you need it is well worth it, I know I dont have a problem eating a lot. I could get down 8 to 10,000 calories when I work out every day and make great gains on testosterone ;)