The reason why I'm so opposed to them is because a lot of people I went to school with experimented with them and a few of them are paying the cost now. It's not pretty, trust me and I'd hate to see a BoSer head down the same path. I'm not saying that steroids themselves are inherently dangerous, but when you're at this age they're more of a detriment than they are a benefit. Then there's the whole legality thing (which IMO is reason enough to steer clear, though others will naturally disagree with me on this point).
In my experience I found that the most effective way to get bigger + stronger muscles, is to just simply do higher weight + higher reps. Many people would say that's unhealthy etc..., but that's the most effective way to gain both size and strength. Well, it works for me. and when I started taking whey protein, it made very little to no difference.
I'm actually really motivated now, I'll go down to 25 kg dumbbells, do that for about 2 weeks, before I go up to 30kg.
and I'll do heaps of cardio, I have a lot of time for workout now since trials are over and I finished the whole course, all I'll be doing is a few past papers for chem/phys/maths everyday =]