First Grow ever, Vanilla Frosting!

It's a strange time, I've never had a plant at this stage and i'm starting to worry i won't harvest at the right time. This is supposed to be a tall bush with dense buds and i feel its a bit small with small buds. To be fair to the plants and the buds, we have crazy skies devoid of actual sun the past 2 weeks due to ash in the sky from the Creek fire, not sure if that's hurting or helping. Could always use pointers.