Since you're miner, i think the best book for you related to trading. As best to know when to take profit.
Books
Trading Wisdom
https://www.amazon.com/dp/B093KQ2BL2
I was a miner years ago. My biggest mistake is holding 80% my crypto during bull market. Should sell most of them, and only stacking most of it in bear market only.
And since ETH went POS mining is dead, if you mining alt coins just becareful when investing to purchase GPU. With low profit from mining + difficulty algo increasing everyday, I dont think it's good idea to keep going.
For timeline
GTX 1080 release
May 27 2016
RTX 2080 September 20th, 2018
RTX 3080
September 17, 2020
RTX 4080 Nov 16, 2022
RTX 5080 and RTX 5090
Q4 2024
New superior GPU releases ~2 years, but i think later it will be faster then you know
Mining is kinda addictive and fun but if i were you, just sell all those GPU while you can, and just buy the coin lol