The professor makes all the difference.... I've taken PChem courses that were nothing more than regurgitating formulas and sections of the incomprehensible textbooks. I had a great professor in grad school who said he could not find a decent text so he had about 100 pages of his own notes.
His class started with Maxwell's relations and learned how to manipulate them. All the regurgitation I struggled with in the prior classes became useless as the relationships were not that hard to derive (once you were taught how). I would suggest looking for material on basic thermodynamic concepts and then on Maxwell's relations and how to manipulate them (yes, they are partial differential equations but all you need is algebra for rearranging and some additional tricks for manipulating the relationships). The best part was - it was the easiest Thermo class I ever took and I learned more than all the other classes combined X 2.
I wish I could suggest good teaching material on Maxwell's relations but for basic thermodynamic concepts, Enrico Fermi's book is a good read.
https://www.amazon.com/Thermodynamics-Enrico-Fermi/dp/808783061Xit may help