Additional Lecture 1. Phases (Intro to Solid-State Chemistry 2019) 

Yeah that's something I experienced at my university. Often times your teachers don't really understand the material very well, so they present it to you as confusing or like you said, from the moon. Don't let that discourage you though! These resources from MIT as well as the plethora of great textbooks can teach you 90% of what you need to know. The other 10% will have to come from a good teacher and experience, but if you study long enough you will find both. I highly recommend William Brown's Introduction to Organic and Biochemistry, William Jolly's Modern Inorganic Chemistry, and Victor Gil's Orbitals in Chemistry. They're oldies but goodies, and can be found online for cheap compared to much bigger, much more poorly written, newer textbooks. You'll want to get your physics and math up to snuff too, in order to understand the Orbitals book (it's quantum chemistry), so be sure to digest MIT's 8.01-8.05 (maybe 8.06) as well as 18.01, 18.02, 18.03, and 18.06 lectures. Chemical thermodynamics and kinetics will be important as well, but don't stress if it's not very interesting right off the bat. After you study all the quantum stuff, you can go after statistical mechanics, and then thermodynamics start to look a little cooler. Anyway, that's probably more unsolicited info than you cared to read, but good luck if you're still pursuing chemistry or physics!

Exactly. i refer to chemistry course and realise when it changed to physics. but yes this connects all dots and makes soo much sense as compared to asking us to remember the things as laws. something worse, my classmates remember derivations and you are supposed to rememver too. simply because you cant miss steps even addition matters sometimes. (we are from Bharat) not that its a disgrace. Im really proud to be indian but education has to change and it is slowly happening