you are doing nothing wrong, this what you are committed to:

it's a game....
RTF CP heli = much harder to fly and very difficult to learn on, but cheap to fix because you will crash.
the objective is to figure it out without spending more in crash damages than to buying a real heli like a trex in the first place.
or you can quit now and be down $250 or you can keep on going

my 2 cents:

download FMS anyway, it's free. it taught me how to hover in all orientations and i was only using the keyboard. it isnt the best, but it gives you an idea of what motions it takes.

definitely put some training gear on. even bamboo sticks will work.

i started off with something a little better than a walkera36 (belt drive shogun), and i binned it. got myself and x400 and i was able to hover for good 15-30second periods on the maiden flight. that's how much easier to fly a real heli is...and i recently learned that mine wasnt even setup right when i 1st maidened it. the only reason it was able to fly good was because i put near top shelf components in it and it compensated much for my noobness. if only i knew what i knew back then...

everytime you crash your blade cp you should be learning how to set it up properly. CP heli's are dependent on proper setup and wont fly correctly if it isnt. so if youre just slapping on new parts and trying to fly you are digging yourself in a deeper hole. the BCP came most likely very close to properly setup out of the box. what condition is it in now?? what is your definition of setup correctly???