Don't be nervous! Cleaning your firearm for the first time is great! It'll help you learn the relationship between all of the parts and you'll have a better understanding of what they all do. It should have come with a user manual which would have a schematic for the official name of all of the pieces. Have that accessible while you're watching a couple YouTube videos. Prepare a clutter free work area, and have a tray or dish handy that you can put the pieces on like the guide rod and spring that might want to roll away otherwise. If you're nervous about just handling your firearm, don't be. Without the ammo in the same room, it's just a hunk of metal and maybe polymer. If you're nervous about doing it wrong, just don't try to force anything that doesn't want to be pulled apart or put together. Other than that, it's pretty easy. If you're exceptionally concerned about doing it yourself, there are gun cleaning classes offered at most ranges, but you can learn just as much if not more from the internet. If you just want the moral support, ask around at the range you might find a friend that's willing to show you how. I once thought it was super complicated and scary but it gives you much more hands on knowledge of your tools.