I don't know if it's too late for your plant or not. Here's what I do when I want to re-grow.
* Indicas re-grow easier than sats, don't bother trying with an auto. Been there, fucked that up.
* Harvest and leave a softball-sized handful of greenery growing around the base of the plant.
* After harvest I let them sit in the dark for 48 hours, no water, nothing.
* Flush well with just water.
* Put her into the veg room at 400W. for 4-5 weeks, mild nute water daily.
* Flush and flower at 1000W and 12/12.
You will notice that the second time around you will have many more but slightly smaller buds. Most
of my re-grows yield 150-200% the second time. A one ounce yield should close to double. Note - I have re-re-grown a couple plants
and find it too frustrating. By the time a plant is being harvested the third time you spend hours trimming off 6,000 tiny flowers.
Good luck, BigSteve.