If you study ten at the same time, you can't finish it, but haste makes waste.
3. According to your own aesthetic vision, choose the exercise that suits your taste. For example, Chu Suiliang's words are elegant and extraordinary; Yan Zhenqing and Liu Gongquan are called "Yan Gu" style; Wang Xizhi's running script Preface to Lanting is known as the best running script in the world and so on.
After reaching a certain level, you will have new experiences and naturally form your own style.