You are interested in learning Japanese?
If you have something to get into, such as Manga, J-pop or anything! You can do it!!!
When I started to learn English, that was difficult to do.
At the beginning, I had terrible spelling and didn't know enough words... I didn't even know how to spell "Bye."
But... I started to watch kids programs like a Sesame Street or movies where I switched original English sounds and wrote down words that I didn't understand.
The important point is to KEEP STUDYING!!!!! If you keep studying, you can learn more and more :)
Good luck in anything you are studying...