Don’t worry, @Rosa, it’s a hard thing to get. I still sometimes have to stop … aim … pull … etc.
Also, when you finally figure out the grapple+jump for getting over ledges (it took me 5 months!) it’ll be like the bloody second coming. 
Edited to add: I’ll happily hold your hand for a bit at the start, though, if you like.
Also, @Rosa, if you wanna go on a grappling trip to practice sometime, meet me at Boundless School and we can practice!