I wish when people ask this question they eould be more specific. As a native English speaker myself I don't understand what it is like to learn English as a second language. What are your biggest problems? There are some standard rules for knowing how to pronounce a word that you read but are unfamilier with it's pronunciation.

The simple answer is practice. As much as possible, and preferably with native speakers. Ideally you should be practicing these skills everyday through conversations in English and exposure to English-language media. I also suggest exploring different accents, not just British and American, but also Australian, Scottish, and Irish. Even in the UK and US, there is regional variation in the way people speak.

I started learning thai a few years back but not intensively . The best way , if you dont wish to learn from an online teacher from start -go, is to grasp the basics from Utube. U just type "learning English' ,and u will get tons of lessons. After that , you will know how to progress as suggested by those sites. I have problems with understandind a new language too when spoken because our ears are not tuned to it yet . In still seaching the net for resources, and thats how ifound italki,and hope to find more to improve my listening skill