I feel you on the 100 easy lessons. It was the only subject my dd5 and I battled on. One this that has been amazing for her is when everyone goes down for naps/rest I sit and she reads a book to me then. We have the Yesterdays Classics set so we just finished working through the Treadwell Primer. We still have 9 lessons left in 100 ez and are doing 1 a week, and reading the rest of the days.
I think the novelty of reading on my kindle (we don’t do phones or iPads or electronics with the kids) made reading a special exciting thing. She was shaking starting but now is doing amazing!
I was trying to decide what phonics program to use next year “in case we had holes” but I think I’m going to stick with early readers, especially the older ones. She read a dr Seuss one yesterday and it was not challenging for her.
good luck! I know it’s a heavy burden, I felt like her entire education relied on being able to read!