O, sorry but pls don't double post, I'm just looking out for you, because I know you are new.
Anyways, If he is more powerful when he throws you then it's most likely that you won't be able to counter that, unless you have more ki.
I hope I can tell him but if you hold right click while swooping to someone then he gets knocked back, if you fly into him then press right click you throw, if you click while you flew into him then you go into advance melee, then you make your moves, if you're in advance melee and hold right click in then everything turns into kicks.
And maybe if you are lucky then you will learn a combo or 2 after a while of playing!
I hope thisa helped