Like everyone says, start of with lower block heels. It is unreasonable to expect to be able to step into 5" stilettos and enjoy walkiung. Fumbling around in ill fitting heels that are too tall is a confidence killer. Being confident is just as important as being skilled.
If you’ve never worn heels before you’re going to need to buy at least one other pair and probably two - a lower heights to get you familiar with the feel of wearing heels. And even then it will take time, patience and perseverance. Five inch heels - or 12cm - is a challenging height even for experienced high heel wearers with years of experience. There is no easy way
So I decided to wear heels to Jury Duty. The pants mostly covered things but security noticed that I had heels on and asked me to send them through the scanner. Nothing major to say, as I wore mary jane flats the next time.