Do tiny projects in Blender and just trudge through the horrible experience of having to look up a bunch of stuff. I also moved from 3ds Max to Blender, but back in the Blender 2.7 days, I'm sure it's easier today.

Basically take whatever you'd do in 3ds Max normally, commit to doing in in Blender and prepare to Google/Ask an LLM "I can do X in 3ds Max 2025, how can I do the same or equivalent in Blender 5.2?" A LOT. Nothing beats practice :)