I would get a 2 or 3 gallon pot. They need some food as well, looking light and stunted but you should be able to bring this one back with proper light and food. You can veg for as long as you like. You will need a completely dark place to flower these plants on a 12/12 light schedule. Your plant may grow to twice the size it is once you flip it to flower, so keep that in mind when deciding "should I flip it"?