@LewisRaz Nice one! I find the minimap an invaluable tool and rarely play without one. Well done one acquiring your Elytra - they make exploring so much faster.
Shulkers are a bit of a bugger - I use armour with Projectile Protection on, and a set of Eltyra incase of falls. A water bucket is essential, for both dissuading Endermen, but also to put on the floor under you when you get hit by a Shulker bullet, so you can land safely. Ender Pearls also can limit fall height if you lob them under ledges etc if you get hit. It's worth noting there is a potion of slow falling in the game made with Phantom membranes. I've not tried them End busting before.
Now you have your wings you will need, as Monty says, firework rockets! Make them with one gunpowder to one paper. There are 3 flight durations available, but flight duration 1 seems to be the most controllable. There's the generic mob farm for gunpowder but you'll have to grow your own sugar cane! To fly with the Elytra, tap space whilst falling and you'll start gliding. Using a rocket mid flight will give you a speed boost - look around to change direction. Be careful not to fly into things as you'll experirence kinetic energy, which is bad lol!!
I have a mending villager for 10 ems, which is awesome cheap. My Unbreaking 3 villager is 44 ems though!! I have a spare of each book, so I'll drop you off a set next time I'm on and you can enchant your Elytra!
Again - good work!! Laters - Ham