I'd put Linux on a second machine and start learning. Forcing yourself to use it for a few days a week, etc. Needs to become a habit. Need to find solutions

I'd put Linux on a second machine and start learning. Forcing yourself to use it for a few days a week, etc. Needs to become a habit. Need to find solutions to all the expected issues. Can use an old machine if you need. You don't want the migration to be harder than it should be, and doing everything at once is way too hard.