Toggle Flip-Flop for Voltage Higher than Logic Levels
Thyristor T Flip- Flop. It can be made for any voltage and can be controlled with a lower voltage.
Through the capacitor (1u) the switching on  one thyristor switches off the other.


In principle, there could be only one problem with it if the two thyristors ignite at the same time at the first moment. In practice, this has never occurred due to manufacturing tolerance. It can also be prevented with minimal asymmetry of (gate) parts. It works for sure for 10 pieces, a long time ago I built a decade counter from them. :)
For simulation give C1 a starting voltage of 3-4V (asymmetry) and it will work afterwards.