First cycle please check

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Ok,

So I have decided to run my first cycle, consisting of P-Mag, and just wanted to get some feedback from you all.

I'm 23, training for 4 years, properly for 16months, and wanting to compete next year. Bodyfat is currently around 18%, and I'm looking to split my workout into upper body and lower body, with each session around 45mins to an hour. Cardio will be HIIT training 15mins after lower body sessions.

Looking to put on some size, approx 10-15lbs, so calories are going to be around 4000-4500 daily. Weighing around 190lbs ATM, looking to get carbs around 400g a day, protein around 250-300g.

My idea of my cycle is the following

Week1 pmag 50mg, better bodies cycle assist or CEL cycle assist
Werk2-5 pmag 75mg, better bodies cycle assist or CEL cycle assist
Week 6-7 nolva 20mg better bodies complete PCT
Week7-9 nolva 10mg better bodies complete PCT.

Multivitamin, milk thistle, and omega 3 throughout.

Anybody have any suggestions/replacements?

I would rather have nolva on hand just in case, but is it absolutely necessary as I know some believe an OTC PCT to be sufficient.

Thanks