[kuronekoaus]

True. I associate many of them with the pictures, but the main thing you need is practise. Also, write out the katakana alphabet a few times. Stick a copy where you'll see it every day. Concentrate on 5 characters a day, basically re-learn it and it'll become easier. It isn't impossible! Good luck.

(Also, yes, I blank out too. Just practise :P)