What made you decide to change your mind?
PCT is crucial, especially at your age. Clomid and nolva are some of the more popular and well trusted pct's.
As for liver protection, liv52 and milk thistle are great for protection. Just start taking it 2-4 weeks before your cycle, and on your cycle. You can never be too sure on too much protection
I, and probably everyone else on here, don't condone the use of aas at your age, but please be smart and research and be confident that this is what you want to do if you do choose to. Starting young causes loads of problems on your liver, t-production, and life in general. Don't jump in and then decide it's not for you. It'll be too late by then.
And I don't think d-bol by itself is a good starting cycle....