6) Practice HEARING the sounds of English
Before you listen to an English podcast, song, etc. read the words first. Highlight, circle, or underline the sound you want to work on. For example, if you have trouble with the /I/ sound, highlight all the words that you think have the /I/ sound. Read the passage out loud to yourself, focusing on the words with /I/. Listen to the podcast (or song, etc.). Can you hear the /I/ sound? Practice the sound by trying to imitate what the speaker is saying.