Don't tell anybody.
Loose lips sinks ships.
SETUP
Buy cheap shit and it will bite you on the arse.
overkill is better than underkill, you can raise a 600w light if too much, ya can't turn up a 150w if not enough.
Exhaust and ventilation is key.
Don't under estimate the space you will need.
THE GROW
If your not fully committed don't bother.
Chose a strain that suites your level of competency. Different strains are more forgiving than others.
Don't love em to death. ie overwatering, over feeding, too much light.
Be prepared. Have treatments ready for insects, mold, defficiencies etc. If ya get spidermite, easily treated if quick, once infested ya got a much bigger and longer job on ya hands.
Be kind to your roots, easiy forgotten. Good soil mix (if in soil), Rhitzotonic or similar suites all grow medium.
Easy on the nutes, not too early and fuck what it says on the tin, gradual increase from low dose.
A good stress reliever... Superthrive or the likes.
IMHO a bud booster is a must.
HARVEST.
Be patient, harvest at the right time. Don't go early, the final weeks are the fattening weeks and you can lose loads if early.
Curing...... do it and do it right. Miss it and expect a bag of shite.
There is loads more to add but got things to do, am sure others will interject and rip my views.