I've been dual booting between Linux and Windows for maybe 10 years or so (and tinkered with linux growing up before that). I think maybe similar to you, I'm technically apt when it comes to computers but not a programmer; I'm good at problem solving issues with my computer and am not afraid to "break" it.
A few key things:
Make sure your important personal data, files etc are kept secure and always backed up. This is probably obvious, but it does lower the threshold for tinkering and messing with the computer. I've reinstalled Windows and Linux multiple times; whether that's getting round broken Windows updates, or Linux issues or just switching up which Linux distro I use. If you are confident you have your data backed up, then reinstalling an OS is not a big deal
Use multiple drives; don't just partition one drive. Ideally each OS gets it's own SSD; this will make dual booting much easier and also allows complete separation of issues. I have 4 hard drives in my PC currently - A 1TB C Drive SSD for Windows, a 500 GB Linux SSD drive, and two 4TB data drives (one is SSD one is just a standard HD). SSD is faster but you can of course use a mechnical drive if you want.
When it comes to dual booting, if you have a separate linux hard drive, then linux will only mess around with it's own boot sectors. It will just point at the Windows boot sector on the windows hard drive and not touch it but add it as an option to it's boot menu. Then all you have to do is go into your Bios and tell it to boot the Linux drive first, which will get you a boot menu to chose between Linux and Windows. Tinker with that boot menu (Grub2 usually) - I set mine to always boot the last OS selected, so I only have to think about the boot menu when I'm wanting to switch. Separate drives saves you having to mess around with Windows recovery disks if things go wrong with the boot sector. One drive with a shared or multiple boot sectors can be messy.
Try a few Distros using their live images. Most Linux distros you flash onto a USB stick, boot onto that (OR use VirtualBox in Windows to try Linux in an emulated environment) and it takes you into the full desktop environment running from the stick. You can then install from that. But you can also use linux that way. You can even run linux entirely from those USB sticks (or an external drive) and get a feel for it, including installing more apps, upgrading etc all using the USB stick as storage.
Also try a few different different desktop environments and get a feel for which one you like. Most distros default to a desktop environment (Gnome, KDE, Cinnamon, etc). You only really need to test the desktop environments with one distro as they'll feel mostly the same in each distro.
If you know you want to use Pop_OS, then follow their guide on how to install. It's generally very similar for all linux OSs (there are other methods but this is the simplest and most common):
Download a disk image (ISO)
Flash the disk image onto a spare USB stick. Balena Etcher is a very commonly used tool for this.
Restart your computer and go into your bios (usually the Del key just after reboot, sometimes Escape or F2) and change the boot order to that USB is 1st, above your hard drives
Insert the USB stick and restart the computer
You should load into the Linux live environment set up by that distro. Pop_OS loads you directly into the installer; you can go to the desktop by clicking "Try Demo Mode" after setting up langauge and keyboard. You can just continue installing.
Select the hard drive you want to install onto. BE CAREFUL at this step; most installers are good at making clear which drives are which. The last thing you want to do is wipe a data drive or your main OS. Know your computer's drives well, and if in doubt the safest thing is to unplug all the hard drives except the one you're going to install Linux onto.
Follow the installer set up (to create the main user account, etc) and install.
After installing reboot the system and go back into the bios. This time put your linux drive at the top of the boot order (or below USB if you still want to boot other live images - remember to take out the stick! But generally more secure to boot to a hard drive and password protect your bios so people can only boot to USB when you decide). That's it! Reboot, and select linux from the new boot menu.
Linux has come a very long when it comes to installing and setting up; installers are generally easy to use, work well and generally hardware is recognised and set up for you. The exception will be the Nvidia graphics card - you will need to set up the Nvidia drivers. Pop_OS's install guide shows how to do it.