write more :o) it's the only way you'll get better and it's a good way of saying "fuck you" to those that cricise...

[other things i do include silently talking to myself in the foreign language while i am out walking (describe what is happening) and trying to listen/read in an "aware" way - for example, when listening to someone speak, try to consciously note the gender of the nouns they are using (doesn't work for english, but you get the idea...). but the most important thing is practice - my spanish got much, much worse when i started working from home rather than in a spanish-speaking company]