Originally Posted by CX163
Any suggestions to improve my performance? It's really frustrating
After I went through my frustrating periods, I learnt that actually quite many student pilots face a similar frustration during their training. The advice "keep at it" can make it even more frustrating!
I suggest that you talk openly about your frustration with your instructor. You can also talk to other instructiors to hear their opinions.
When someone's progress slows down or stalls, they need more than just a greath bunch of advice. They must conciously analyze ("troubleshoot") the problem to correct it for good (unlearn the bad things and learn the good ones), with the help of the CFI sitting next to you.
I feel that drifting all over the place is a sign of overcontrolling the airplane, but nobody else can identify the reasons better than the instructor sitting next to you.