One you started way to late,
plant in April or May,
flowering should start in mid to late august.
2 invest in good quality soil or make your own,
(check the supersoil link here)
use nutrients something high in nitrogen for veg
and high potassium and and phosphorous during flower.
and yes miracle grow can work but I use higher end stuff
and my own organic teas.
3 leave it alone unless you need to fuck with it.
4 this is the most important part, READ, Read, READ
knowledge is power and scroll web pages, google it and read
info from here and all these guys and guys will help too, did I mention read?