I suggest that you spend several more years training naturally before you start using steroids unless you have the genetics to compete in bodybuilding or strength sports and hope to make a career out of it.
What kind of scientific data pertaining to what aspect of all this are you looking for? There isn't an abundance of it, but sufficent enough to explain many of the methods currently being used.
This may be true. It depends on genetic responses and individual predisposition for certain ailments where steroids may not be a direct cause, but still a major causative factor. It also depends on what amounts are used. Essentially, we're talking about risks vs returns.
You can ask about terms here when you find some that are hard to understand.
This is not a good idea unless - see above
The half-life of the cyponiate ester is around 6 days.
You may never recover despite taking all necessary precautions.
Refer to flip's post.
What are you intending to debunk? Steroids aren't healthy. Being over 220lbs at average height isn't healthy. Competing in a depleted state isn't healthy.
Are you aware the risk of permanent damage to your hpta - hypothalamic pituiary testicular axis, leading to requiring lifelong hormone replacement therapy? If you aren't, hopefully you will educate yourself more on this aspect so you make an informed decision, taking into account risks vs returns, to start using.