I'm a real happy person that will try to teach through a funny way (as long as this kind of lessons can be funny).
I'm also studying japanese, then I can give you some tips between both languages. I have been philosophy and latin teacher before, then I think I have some experience in this area.
I can teach you both spanish and catalan in the same lesson because they work quite similar and they are my mother tongues. If we meet, you can contact me through whatsapp and ask the questions you have about the lesson (for free).
You can also ask me questions in English. I reached the C1 level one year ago, then I firmly believe that I can help you with any problem you have to deal with.