Have you read all the AAS profiles? Do you know what you are planning to use? Have you read all you can about PCT and know what you are going to do for that?
My suggestion is to avoid AAS until your diet and training are dialed in just perfectly for your body, and until you've gotten all the results you can realistically expect from this.
Only then would I consider adding AAS... and I would also keep a first cycle very simple. Simple as in test only...nothing else. One can expect very nice gains from a simple cycle of test e or test c @500mg/week (that's 72mg of testosterone and 28mg of ester for enanthate)...and only run it (2ml/week) for 8 weeks. For PCT, I'd wait until 2 weeks after my last injection and start my nolva at 40mg/day for 2 weeks...then 20mg a day for 2 weeks...then 10mg a day for 2 weeks. Others make it more complicated with other drugs, but there is no need. The only other thing i'd even consider using...and it's not absolutely necessary is HCG at 250 iu's three times a week, stopping it 2 weeks before ending the cycle.
Time on + PCT = time off.
Then I'd repeat this same exact cycle until it didn't work for me anymore. Then I'd add something else small and simple, for example 250mg deca/week and again, stop it 2 weeks before the end of my test.
My HTPA died when I was 30 years, a medical condition not from AAS usage...some time before I ever picked up my first pin of AAS. I'm on TRT for life. Believe me when I warn you, you don't want to end up there so if you decide to run any AAS then do so conservatively and with caution. You don't want to end up on TRT for the rest of your life by doing something dangerous and stupid like running too much AAS, too soon.
My condition has resulted in no libido, impotence, gynocomastia, muscle atrophy, weakness, and chronic fatigue if I don't take test injections every week. With the test injections these things are all resolved...but even with libido returned without cialis EOD, I cannot get an erection...and even then it's not what it used to be so I have to use Caverject too...that's a needle in your dick when you want to have a GOOD night with your lady. In addition there is an AI ED and a prolactin inhibitor 2x ED. Like I said, mine was caused by a medical condition so I have valid prescriptions for what I use... but you can be just like me from irresponsible use of AAS ... or you can learn all you can, start slow, be cautious and safe...and avoid all of this. Read, read, read...and learn.
Good luck to ya. Wishing you the best.