...would suggest otherwise.
Basically, you're an average-sized, beginner-to-intermediate-strength male. The idea that you are above the need for help with your diet and training, but ONLY in need of steroids to make gains, strains credibility. Dozens of people on these forums alone have advanced beyond your current strength and size level without turning to steroids.
You don't need to learn to use steroids. You need to actually eat and train properly, and accept that after a little while this shit gets hard. How long have you been lifting?