Hey mate don't give up.
The HK heli's are cheap and pretty useless, especially when you're at the learning stage which we are.
The guy i'm looking at buying the Trex 500 pro from started with a hk450, now the only thing left on it from HK is the battery and the carbon body, everything else has been replaced, and it flies better, but he's still not happy with it.
He then bought the Trex 500 and now has a Mikado logo 700 that he loves, and boy can he fly that thing!!
Mate if you have a Mrs who's keen to get involved, grab it with both hands. Mine is a bit like Westy's only has $$ signs flash up and thinks it's for kids and doesn't understand. (mind you she's like that with most of my hobbies)
Same thing as I said earlier, if you can get to a club, and can get someone to buddy with you, helps a bunch, plus then someone can tell you what you're not quite doing properly so you can stop learning the same mistakes.
I'll keep trashing my hk450 but will want to learn properly on the 500. In the end you get what you pay for... I paid for junk and now have to outlay lots more money to make it a good heli