The site Creating Passionate Users
has a following of sycophantic converts who all know that the Passionate Users formula works for marketers, writers, people who have to give presentations, teachers - in fact anyone who wants to make someone else enthusiastic about their product, whatsoever that may be.Seduce yourself.
Your focus of course has to be on how the language relates to you, the learner; how it will help you. You can look at it as a voyage of discovery, a challenge, a social experience, a goal to triumph in, for the sense of accomplishment, as an escape from reality - or more likely all these things at different stages of your learning. (When your brain has had too much of you thinking 'This will be useful for me', and when you've exhausted your capacity for reminding yourself that 'I enjoy this', you can try another tack.)Expose yourself to positives
as much as possible - seek out strong emotions, smiling faces, attractive people, enjoyable situations, fun (informal) language. Keep your interest by varying the things you're doing to learn. (Much easier with the 'Net or being in a country that speaks the language.) To be honest, I'd much rather read or watch an interview with Shakira (Colombian) or Eva Longoria (Mexican-American) than with some boring 'normal' character in a textbook or newpaper. It interests ME; it holds MY attention.
Finally, relax - your brain will take in more. Never let it get you down if you can't seem to say something right or the words just won't stick in your brain - being able to smile graciously through your language mistakes will win you huge respect, and a second try.