Learning 2 different Languages at once!

民アーさん、こんにちわ。 私の名前わジャメ者です。初めまして！ 私わ少し日本語が話せますか。
So, at my Uni, I am taking Chinese next year as the Uni I go to only offers Chinese and Spanish. I am already teaching myself Japanese at home. I need partners that can speak English (NOT necessarily fluently), but do well at understanding, and speaking and writing. (I am confused - studying Chinese but want English speakers?  Do you mean those who can speak both Chinese and English?) Trying to learn these two will be difficult with all the pinyin pronunciations (i don't know how to spell it right) and I never haven't started studying on Chinese yet. My sister and mom (usually mum and sister) can speak it but my mom is always at work and my sister is deploying/transferring/relocating to Kuwait soon.
I dont know much in Japanese at all. It's quite possible to forget your first language. I'm the living proof :) aha