Second cycle of m1t?

I just finished my first cycle(3 weeks on) of m1t about 3 weeks ago. I took all the recomended pills (i.e. milk thistle, hawthorne berry). While using i went on a protein called Isomax Extreme gainer that worked amazing. 995 calories per 3 scoops and 65 grams of protein a serving. It also had creatine in it, Im finishing my PCT in 2 days of nolvadex, milk thistle, and tribulus. I was wondering How soon should i start my next cycle of m1t?