Start with easy ones first such as slow songs/ballads and progress from there.
The first song that I was able to follow the lyrics was Wind Beneath My Wings by Bette Midler.
If you want some slow songs to try...watch YouTube vids, you should be able to read the lyrics and watch the singer sing as well. Some of the videos have lyrics in the info, others don't. So what I would do is to have one browser window set for YouTube and another besides it to read the lyrics.
Let me know if you're interested in some "easy" songs and I'll send it to you via PM.