Important stuff that you need to do, which I'd rather not take the chance of you missing:
Get bloodwork done after you finish your PCT. Say a week or two after your last dose of whatever SERM you decide to use. Make sure everything is back to where it should be.
Normal time off between cycles is time on cycle+time on pct=time off. seems like a long time, but hey, it's your balls. A lot of guys will take less time between cycles, but most of these guys are either the very experienced guys that either know what they're doing or have done it so many times that it's just their lifestyle, or idiot kids.
next cycle, get blood work before and after. this way you can be sure that things are how they should be.
Good luck. Start reading, there's a LOT out there.