I need someone that will like to help me learn mandarin chinesse?

I speak perfect English and Spanish... I'm trying to teach my self mandarin Chinese but honestly is difficult because I dont know if Im pronouncing the words correctly without someone that assist me. Im 17 years old I live in USA I can help you to improve your english or teach you spanish in exchange please someone take this seriously I really plan to expend the time is needed on this... self motivation. I think it should be a person familiarize with online tools of the time like skype ovo or instant chat. Thanks for your help!