This is a very common thing for a new person to RC planes to go straight for the looks of a plane and use that to decide their first plane. Most pick out jets too. Truth is, it seems the better they look the harder they are to fly. Most who approach and have that first experience with a plane like that and then crash get discouraged. Some may then leave the hobby b/c they didn't follow the advice of others about picking a better "slower" first plane.
You've got a couple things here helping you though...
1) You seem to have a light hearted attitude about it and understanding that crashes will and can happen. And a very good chance they may on your maiden. Don't lose the lightheartedness. It's not fun if you can't laugh at a crash too. Sure it sucks, but eh, life goes on right?
If you do crash, make sure it's a good one!
2) This is foamboard we are talking about. If you do totally obliterate your airframe, you're only gonna be out $3 to $4 in foam material. I'll assume your electronics will survive, which most of the time they will. Not like you're out thousands of dollars if you crashed a new balsa Edge model.
That's why Flitetest is great. Learn to fly and not break the bank. And repairs are easy....print your plans back out and cut a new piece.
I'm with the majority and don't recommend the Edge as a first plane BUT since you are going to try it, I'll echo what
@DamoRC said. Keep your throws low. Little bit can go a long way if you know what I mean. Expo will be your friend too. Don't go too crazy with it. 30% tends to be a recommended expo setting for a lot of FT planes, but I'd recommend around 50%. With planes, the smaller the stick movements the better.
I think
@mayan mentioned this in another thread you posted in, but join us over on the thread "At the EDGE of the world, we meet"...
https://forum.flitetest.com/index.php?threads/at-the-edge-of-the-world-we-meet.59425/
A bunch of us (myself included) are sharing our FT Edge experiences. So you can learn from others and others can learn from you.
One final thing.... I'd highly recommend building a Tiny Trainer in your spare time. It can go from basic 3 channel trainer to 4 channel aerobatic plane (like the Edge) just by switching out the wing. It's super quick to build/repair. You could later modify it by adding a faster motor on it if you wanted more speed. Sure it's boxy and not as pretty...BUT it can take a beating and it's versatile.
Good luck to you!