How do you learn?
Instead of focusing on WHAT you learn, have you ever looked at HOW you learn? what works best for you, not just for languages but for learning anything!?!?!
Check out BBC English's course for a simplified explanation and some great tips and tricks (intermediate listening)...
link to course: https://www.youtube.com/watch?v=h9ven4N67i0&index=2&list=PLcetZ6gSk969bFRcOW_V6e-SabTueb7gA&t=0s
if you're feeling adventurous (and really smart) the the guys at Crash Course have the best series I have EVER seen on learning how to learn!!!! (advanced listening)
Good luck with getting better at getting better! remember the immortal words of Yoda when you're looking for a motivation boost... DO or DO NOT! there is no 'try'...