You will, at some point, fuck something up. Resist the urge to type in whatever console command comes from a Stack Overflow problem that’s similar, though not exact, to your issue.
Keep a log of changes you make so you can identify what change may have made things worse or not done what you wanted.
Have a data backup off the machine of anything you can’t bare to lose. Keep it for at least a year in case you lose the original data.
Be patient with yourself and expect to feel like a noob at computers again.
Don’t try to make your DE like Windows, embrace the changes and discover better or new ways to set up your desktop.
Again, be patient and take your time. It’s like riding a bike for the first time.
Ask Linux communities for help if you have a good, positive source of helpful individuals.
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