I don't understand how these kids get started with gear and THEN ask how to use the stuff. Kid you need to take an hour or two and read the stickies. You should be a hell of a lot more worried about post cycle therapy (pct) than an Aromatase inhibitor (AI). But the stickies have info on that too.
Even wonder why whomever sold it to you didn't provide instructions? Hell, have them read here too. Then they can sell you the other stuff you need to recover your nuts!