AI= aromatase inhibitor. There are several good drugs in this category. PCT= post cycle therapy. Don't fuck with deca or other nandrolones right now since you are not even ready for test. Much more study is needed. Read the stickies in this forum to start. Google anything that confuses you. I can't tell you what to do, but you need to know what your doing before you get into this. It's serious shit. We're talking about powerful drugs here, not magic supplements. Hormones affect more body functions than you can probably imagine, so altering them is a big deal. I don't really feel comfortable giving you any more info until you demonstrate that you understand this topic very well.
I know this probably comes across as harsh, but you need to see the importance of understanding in this situation and the seriousness of the things you're talking about. I remember finding all this info myself and researching for months before even deciding that I wanted to use, before spending another several weeks deciding on products, dosing, duration, etc. It's all out there. Please read up for your own good.