Guidance

Hi I have also been studying independently and for CR going through power-scope bible helped me immensely, I suggest that you go through that book and do the following
1. Go through initial 4-5 chapters and start solving low difficulty question(preferably LSAT) from the topics which you have studied, meanwhile continue going through the PowerScope book
2. Once you complete the book, start doing LSAT questions without the timer and solve each question with depth, I write the reasons in a notebook while solving question on why each option is wrong, this helped me reinforced the concepts visited in the book, this phase will help you strengthen your understanding and will help increase accuracy under time pressure
3. After performing step 2, start doing the questions with the timer, because solving a CR question in 5-10 mins is one thing vs solving it when the clock is ticking

Also GMATNINJA videos help a lot on verbal

For SC, I have just covered the fundamentals of SC and am currently on step 2