Can i let these strain go back tot growing?

Hi there @tweeth unfortunately with Autoflowering plants they have what are known as day-neutral genetics. These genetics allow the plant to remain neutral to the light and go into flower regardless of how much they are receiving from the sun. This means that Day-Neutral plants like Autoflowers have an internal mechanics that say when to flower, such as "maturity". Because of this the chances of you being able to Reveg this autoflowering plant EXTREMELY low - but i guess not impossible because genetics have room for mutation, hence evolution. 😎

yes bro, life will find a way ... try not to kill it, be very f-ing patient and see for yourself... do you like 20 weeks of autos? let's see ! 👊 🚀

Popular wisdom says no you can't. That been said, I once left a harvested auto plant outdoors just to see what it would happen; it revegged and flowered a second time, it took quite a few weeks to do so and it's not a sure thing.

No you can't ! It is an Autoflowering strain so she will flower once she will have a certain age or once the roots will totally fill the pot, even with 18h of light she will get into flowering. If it was a photoperiodic strain then it would be possible to re-veg her with a 18/6 light schedule and time to recover. Sorry