The schools we've switched to use 'form drawing' to teach the hand and the mind the movements that will be necessary before the letters are even taught, much less the kids are taught to write them--but then the children are expected to write them very clearly when that time comes (latter part of first grade).
Form drawing essentially involves imitation of the teacher (you), drawing big shapes/lines that fill entire big pages (I think they are about 12x18). Literally the first form is the straight up-and-down line that cuts the page in half. Then, when they can do that well, quartering the page by drawing a line up and down and a line across, both well centered. I can't remember the proper sequence after that. I think the next one is the 45 degree turn, the X with the lines going all the way to the four corners. There are "c"s and backwards "c"s, and a time when they have to put a dot in the center of the page, and then draw things from that, and then they have to put dots in the center of things like the triangles formed when they draw "M" on the page (always hitting the edge of the paper with every 'stroke') ...
Anyhow, I ran into the same idea at my Catholic gradeschool in band (play at half speed and then, once you have it right, it will naturally flow into full speed) and in my public junior high and high school in art (draw it big, or you will never actually know what you are drawing and your small pictures, no matter how 'finely done,' won't look right).
Let her step back to the level that gives her brain enough time to assimilate and integrate the information (the brain trying to do things it isn't really biophysically, developmentally prepared to do is the basis for things like dyslexia--or me needing to wear bifocals at age 8 because I did too much reading ;) ).
I deliberately stepped my oldest 'back' from what her academic-focus kindergarten pushed on her (writing and reading) by switching her to this new school, because watching her and her classmates suddenly gave me great clarity into the damages I had seen done, especially to 'more intelligent' children, all my life in school. I had to heavily encourage her to let go of the old forced teaching, but she did let it go after a few months (phew!), 'couldn't read' again until halfway through second grade, but now is easily reading chapter books, both out loud to her sibs and in bed to herself ... and now I am not worried about glasses for her, and hoping to avoid Daddy's former dyslexia for my boys. (Daddy was "very dyslexic" ... essentially stopped reading at all in high school ... which ACCIDENTALLY was exactly the right thing, because all of the forced miswiring loosened up, and when he took up reading again in time to go to college, it all wired in a much healthier way ... and he was an English Lit major!)
I guess what I'm saying is, if she keeps working from where she's at, she can only build on the shaky foundation. If you stop the process (summer break coming up may be just the thing you/she need!), and build the foundation FIRST, all future work will be (1) easier (less struggle to stay standing, as it were) and (2) better.