Often I also hear, "I can't switch systems. I am too busy to start from scratch with all my files." Or, "I'm too busy to go back and forth between two sets of files, one on my Windows computer and the other in my new Linux set up."
But you do not have to suffer either of those inconveniences to migrate to Linux. You can eliminate keeping duplicate files in both operating systems or the need to choose one OS over the other.
The solution is to install the Linux OS as a dual boot on the existing computer and continue to store and access all of your data on the Windows side of the hard drive. This lets you learn Linux in stages as you wean yourself from Microsoft Windows.