Speaking from personal experience, my central vision is still ok (ish) as well but just ask for assistance. You cut lines, customs is a breeze, it's really quite nice! Other than that, there are assistance lanes that staff will usher you down, they let you skip the crowds and those pole barrier things which is nice.
I'd also try to be dressed reasonably well well and you'll find most people are super nice! (I'm not sure what it's like in Europe but I've gone between NZ and Australia a few times since needing a cane myself). Good luck!

I've not flown alot but i'd recommend taking your folding cane. It will be a lot easier for you an other pasingers. Instead of having a big stick in the way of the pasangers who might be sitting next to you, you can fold your cane down and put it under the seet or next to your feet.

You should be fine I’m almost completely blind and I travel often, i’m assuming you have much better vision than me since you can read the gate information. Might be a bit difficult for your first travel but you will get used to it with time and you will learn new ways and tricks. Good luck!