To be honest, sounds to me like you're doing ok!!
As G-emma says, the circuits can get you demoralised. I felt like I was never going to get the hang of circuit, now I'm about to go solo.
I'm getting there albeit very slowly and it is frustrating at times but its not a race (well, there is the problem of my impatience!)
Some days nothing goes right, other days everything clicks and there aren't many other things to top it.
If it was easy, everyone would be doing it.
Stick at it, there are several milestones along the way which make it all worth while.