how to pedal timemashine

[vignjo]

can anybody do video how to pedal timemashine...and maybe some description or advices
I ride right foot...and when I try to get first on crank with my left foot, I fell down
and if I (from place) step with my right foot on pedal and with other foot try to push from ground...my right foot is going foward,backward so fast, I can't be in one balance point with my foot :/