I am non native English speaker and aspiring elementary teacher looking to improve my understanding of phonics.

I moved to the Us when I was 11 and was placed in a ESL immersion program in school. In a way, I taught myself how to read and speak English. I've been accepted to a certification program with the objective of teaching K-6 B. Ed. I am a substitute teacher and one of the things I find the most trouble with is phonics. Things such as "long I" or "Short I" don't really make sense to me unless I stop and stretch the word out loud. I am currently looking for resources to rectify this! I have a year until my internship and I want to work on all my weaknesses. This the first step! Edit: I guess I would also like any books in bilingual education.