hi welcome to the forum
sounds like you haven't completly mastered balancing on the back wheel yet. if you cannot hop on the spot with out going back ward or dropping the front wheel.
i would have to say you haven't quite got the balance point yet.
this may help possibly if you try pausing inbetween hops to figure your balance point. this will be the point where to feel you are not having to lean back and pull on the bars to lift the front and you are also not pivoting backward over the back wheel.
once you have this dialled. you could experiment with lowering your centre of gravity. by lowering your hips( or bum) at the same time as the front wheel. do this by sticking your bum back and at the same time extending your arms forward.
once you can lower your centre of gravity. then try lifting it back up from where you started.
so thats in order: bring your bike to the back wheel (however you like). hop, then pause, then lower your self to the ground front wheel and your hips, then lift back up and hop.( it should be very similar to a slow hop.
what your trying to do is lower your centre of gravity then lift it really quickly. thats what will give you your upward motion.
once you dial this then with the pedal kick and a little extra leaning forward you will find lurching forward much more fun
sorry for drowning you with an essay have fun riding and remember to ride for your self not to impress others and you should really have fun