To answer all at once -- Morin does build in some repetition, so often there will be 4 or 5 problems more or less alike, and by #3, I can start to get them pretty well, though #1 might be impossible. However, sometimes it doesn't go quite as smoothly. And yes, his chapter #1 is awesome and useful. I mostly check my answers with limits and units.

Also -- I read a chapter from his bigger book with pencil, often copying out, before I start a chapter in his little book.

I don't have any other resources -- I hate watching videos on the computer at night, no school that is convenient, etc. So sometimes I feel like I just have to get everything from his solutions b/c I don't get his lectures first.

Finally, ... My plan is to work through this book by the end of the year hopefully, then do Astrom and Murray's feedback book, then come back to Morin's red mechanics book. And then who knows -- that is probably 30 months out.