I don't want to come across as the "crowing" kind, who says, oh just do it, you'll be fine, go on, go on, go on lol! Because the first time can be quite daunting if most people are honest about it!
However, I'm out the other side and happily go away on my own to indulge my hobby, which (maybe) to MN surprise is not a secret and it's not outing 😊I studied Greek and Roman civilisation in a past life, and since retirement a few years ago can now indulge myself in trekking around all these mad ancient sites in Italy, France and Greece.
I do go away with himself for a few fly and flops since he has bad arthritis, but we try to find somewhere interesting for both of us. Well that means a sunbed for him and something historic (apart from myself) for me.
One thing that I find intimidating when on my own, I have to admit is eating out in the evening. I don't know, I just feel such a spare at the relative formality of "dinner". So I have a fabulous (or cheap) lunch out instead, (less formal) do my wandering around, and have a picnic dinner in my room. I stay in hotels as I feel a bit safer with a reception there and no cleaning, and breakfast served. I have found since I'm older that in Europe for sure, there is a lot of respect for the older ladies like myself. People couldn't have been kinder. But you're probably only out of nappies, so you'll be fine also. Best of luck and have a ball!