Frustration happens to us all. when you can, dont worry about it. (easier said than done)
most people here have been doing kendo for many years, those that stick with it decades. so no need to rush. I did basics for nearly 10months then as I said put the bogu on starting with kote. do tare then men. and no sparing until I`d been practicing for nearly a year. But this is a pretty rare time frame I think.