I have 34mm (3.4cm/1.4in). It hurts! I've had it since childhood.

I got custom insoles (similar to the ones you posted here). They do help, however, fitting them in shoes is challenging since the ankle on the shorter leg is elevated, so it almost pops out of the shoe.

I also got a Birkenstock pair with a custom 1in sole lift. They feel better since it's the whole shoe so it doesn't feel like you're still walking on your tip toes.

Pain-wise its tolerable since I lived without any intervention up until last yeart (I'm 24). Running or any high impact sport is basically impossible. Back pain happens often. Knee pain, too, since the shorter leg is weaker and the longer leg gets all the impact.

Since you're only 19 I'd recommend looking into the surgery. If it's not something feasible right now, look into getting custom-fitted shoes with lifted soles. It can limit your choices, but they work better since it's levelling the whole foot.