Nope, you know what, after reading this...I've changed my mind. You need a different answer, so let's get started.
You are not a special case.
Read that again, let it sink in.
YOU ARE NOT A SPECIAL CASE.
"I don't really need steroids to compete at this level, but I'm considering it right now just to make some gains real quick just so I can play this year, then I'll hop off for good. I could spend a year working hard and get big enough, but I don't want to wait!"
If this is honestly is an accurate reflection of your attitude, just quit the football team and find something better to do with your time, because college football is clearly not for you. You just want a shortcut so you can get on the field this year? Just a few magic pills to bypass the hard work you'll have to do for a year, and just gain some quick muscle in the next five weeks so the crusty old coaches that aren't playing you realize that you're a special snowflake who deserves to be on the field ahead of the bigger guys who the coaches feel are the better players for the time being?
Look, son, football is hard. Don't give me some sad song and dance about how you're actually better than the guys in front of you but the rotten coaches can't see past your size and whatever other tragic excuse you have. I actually played the game, and understand that most of the time when some kid is complaining about the coach being an idiot who won't play him over guys that he swears he is better than, that kid is an entitled POS who's just going to quit the next season anyway. Seriously, we got a new crop of freshmen every year, and there would inevitably be a handful big-timers who were first-team All-This-And-That and rode the bench for a year, didn't put the work in, were still on the bottom of the depth chart going into sophomore year and quit (usually still believing the whole time they were better than the guys who actually played).
Senior day ends up being really special because of that. Half the guys who came in with you will be gone by your senior year. They're the ones who took this bullshit attitude. The guys that are still around on senior day are the ones who just put their noses to the grindstone and got to work, not the ones who looked for a quick shortcut to playing time instead of actually earning it.
I'll predict right now that you won't play four years at whatever school you're at. You'll either quit after 2 seasons because you still haven't played, or you'll transfer because you're convinced that the coaches have it out for you and you need a fresh start with a new staff.
If your panties are in a twist because you're a freshman & you're not going to play this year, calm the fuck down, step away from the "Should I do one quick oral cycle?" button and start eating. You'll have plenty of time to play, and if I was a senior on your team who read this last post, I would kick your ass for trying to shortcut your way ahead of others that have waited their turn and, at least in your coaches' estimation, still deserve the starting position ahead of you.
Look, if you want to do steroids, just do it. That's fine. Just don't keep this bullshit attitude about just needing them for a quick boost to slap on a few pounds of muscle so you can play sooner rather than later. You're kind of missing the point.
Now that's off my chest, I do have a serious question:
What, exactly, did you eat yesterday?
I ask this because steroids are not a magical way to add muscle in the absence of quality food, and at your size there's a pretty good chance the "problem" of being 165 pounds will not be fixed by a few weeks of oral steroids. You might gain a few pounds from your cutesy little cycle, and then you'll lose it all if you're not eating enough anyway, so what's the point? Get your diet right. That's your problem.