the above videos are useless if you dont know abc of MP. instead of having complex approach towards MP learning simply pick the book of dalton and study chapter 2 & 3 and keep asking your doubts in this thread. once your foundation is strong move to next chapters.
"It is vain to do with more what can be done with less"
"It is easy to do, and it is easy not to do"
"Momentum precedes price"