I think it's a bit too early to start reading this book; I doubt I'll be able to grasp all the formulas.
On Bilibili, I recommend watching videos by:
* 爱上半导体 (Ai Shi Ban Du Tai) - a semiconductor expert
* 工科男孙老师 (Gong Ke Nan Sun Lao Shi) - an engineering professor
* 小鱼教你数模电 (Xiao Yu Jiao Ni Shu Mo Dian) - "Xiao Yu" teaches digital and analog electronics
If you prefer a more systematic approach, I recommend taking a course on basic circuits and electronic networks.
P.S.: Searching for amateur radio directly can also yield many excellent contents.