GRE Quant Concept Progression

Hello, I just finished the week 1 content of the 2 month plan, I am a working professional so am taking it at my pace. My question is that though i have felt a definite improvement in quant concepts - I have consistently scored between 55-65% in most of the quizzes/practice videos on gregmat (the percentage would be slightly higher for manhattan 5lb). Now my question is what do i to in terms of going forward? My errors usually consists of silly mistake, question reading error, pattern recognition lapses and very limited concept related issues. I do have manhattan 5-lb and ETS as material but I am trying to save ETS for when I am more advanced in math skills so as to not waste it. Pls suggest what I should be doing next - moving to algebra and continuing to solve a few of arithmetic questions per week is my inclination as well as doing quant mountain more rigouresly but i am open to your suggestions as well (If it was not evident from the post, my Quant sucks)

I would start over and go more slowly, and enlist the help of an LLM or tutor - your accuracy tells me you are not mastering the things you’ve covered. See the “quant progression” video.

I am not able to find the video you mentioned. How much should I be looking to score on foundation quizzes/ other quizzes & questions before I can actually move on?