There are a couple of books on layout, but they are quite old.
The basic principles are still the same (shielding, symmetry, common centroid, matching, decoupling, low resistance, void hot spots for current density, etc.), but technologies and layout styles, design rules, restrictions in latest technologies (sub-6nm) are so different from older technologies.
1. A. Hastings, The art of analog layout.
2. D. Clein, CMOS IC Layout.
One thing you can do, for self-education, is to learn about electrical implications of the polygons you are drawing in the layout - where capacitances, resistances, RC delays are coming from, what's causing a systematic mismatch, the role of floating metal fill, port placement, counting squares, what sheet resistance is, etc.
There are courses on layout, e.g.:
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