Practice is key... but so is slowing down. Don't try to tackle it a full speed right from the get go, especially if you're just starting.
Make haste slowly.
Slow it
way down. Pretty soon the interplay between the words and the chords will be easier so you can speed it up. But just a bit. When that becomes comfortable, speed it up again.
Eventually, not only will that specific song be easy, but it'll be easier to learn other songs.
Any time you hit a new song with chord patterns you're not familiar with, slow down again.
Make haste slowly.
I know I said that before. But it bears repeating.
Lastly, remember two things:
- You will get it, if you're patient.
- It's not a competition. You'll get it at your own pace, and that's good enough.