I am not sure you are talking about 注音符號,(ㄅㄆㄇㄈ, pronounced BO PO MO FO) or Pinyin. If you are talking about BOPOMOFO then I can teach you, for free. It is very simple and I feel that it is better to learn if you want to better understand proper pronuciation. It covers things that Pinyin is not capable of. It helped me, while I was living in Taiwan, to not get say 十 and 是 the same way. It also made my accent more clear for when I lived in Mainland China.