That's sounding great, Kiwisa. You've got the music in you, that's for sure. It sounds to me like if you just relax a little, it will all begin to flow better. Don't let those chord changes tense you up. I'm not sure what kind of guitar you're playing, but I remember my own learning, way back when, really accelerated dramtically the day I bought my first 'good' guitar. By that I mean: friendly, well set up, good intonation, ease of playing ... it doesn't necessarily mean expensive
You're gifted; keep playing, never stop.
Edit: ... just noticed how old this thread is ... how's it going now Kiwisa? I'd love to hear you playing it now!