white widow help

so i have this white widow plant outside.. im not sure how long its been flowering but the most it could have been was 6 or 7 weeks...its really frosty with lots of crystals and shit and the hairs have turned brown and looked like the dired up......im wondering if it is ready all the leaves are pretty much yellow but my concern is that it says it takes at least 10-12 weeks for it to flower ...is it too early to harvest it?

depends what seedbanks 'whitewidow' it is, they all have a different one. if its greenhouse seeds its a 8 weeker. get a scope and look at the trichromes, if theyre cloudy with some amber, its ready.