I hate to say it, but at your height and weight, you aren't all that big. For all those years of training, you should be a lot bigger or more ripped at that weight. So the first thing I would do is take a good long look at what you've been doing training and nutrition wise. Something cleary isn't right. If it's a matter of the 'training off and on since 15', and there being more off than on then I think it's time to also look at your dedication.
None of this is a flame at all. I just don't want you ruining your first cycle and not getting all you could out of it because of training, nutrition concerns. I would first go to the training board and read some of those stickys. Once everything else is in order a good first cycle would be 400 or 500mgs of test all on it's own. Nolva on hand and proper post cycle therapy planned out as well. I would run that cycle for 8 weeks, no longer. If you want to run it longer, then 10 tops. You want to get in and get out quick.
Currently I am in the 260 range, and I am running a cycle very similiar to yours, and you are only 200. I'm doing 750 test e, 500 eq. Just some things to think about. If you need some training or nutrition tips ask around, lot's of great bro's here. Welcome to the brotherhood.