I managed it - this was my first repair. It’s a lot harder than I was expecting, but totally doable! I recommend just sliding the very edge of the pick around first until you find a corner that starts to peel up. Once you can see under the screen (without bending it, of course!), you can go further in to break the stubborn adhesive globs. It took me just under 30 minutes to remove the screen.
Step 10 addresses this: there should be a plastic sheet that looks like your screen in the repair kit. This is the new adhesive for reassembly.