Blitz is very much a matter of "shape of the day", at least for me. There are days when I repeatedly win almost effortless against players rated 200 higher than me, and then there were days when I lost 8 times in a row against lower rated players. If I haven't slept well, had a bad day at work, drank alcohol, whatever, I know I should rather forget about blitz playing at this time (or play some unrated games first so that it doesn't ruin my rating :).
I'm sure almost everyone playing here with a rating over 500 knows the basic mates and tactics - in Blitz knowing them is not enough, you have to see them quickly too :)
Today i lost about 10-15 blitz games and won 3-5 i did feel a bit off when i was playing but still, do you think it was due to this that i lost all these games or do i simply need another go at the tactics trainer, but the thing is i know all these basic mating patterns and forks etc but i still fell for them and hung my queen countless times.