Originally Posted by sharkboyxs

Yes, we do grind like 18 hrs a day

Not sure if sarcasm or not, but getting the 9 gatherings is not very hard, even if you are at work, just log in use the gathering...
Logging in every six hours a day is not much to ask for, and spending around 10 minutes of your break to spend 160 stamina is also not very demanding with auto-run, just a few taps and you're free to continue lunch.

PS: How did you come up with 'grind like 18 hrs a day'?
Waking up to use 3 gatherings followed by waiting another 12 hours to get the final 6 gatherings. Might be hard if you spend less than 12 hours a day up...