Somewhere between.. 4 and 5? It's complicated....
Started out with my University riding club, but they gave up on us beginners after a term... I then got on no more than half a dozen times for the next decade, followed by a couple of years of semi-regular riding.. then a few more very occasional rides until two-and-a bit years ago, when I recommitted to riding every week. It's not always convenient or affordable but I've (mostly) stuck to it. In the last year I've done my first dressage tests and have, finally at the age of 45, started to feel like a rider. Still lots to learn, but I'm in no particular hurry. I slightly regret not having 'given in' to the passion when I was younger.. I always felt it (since my teens) but didn't really know what to do with it alongside all the other ways I was trying to work out how to make my way in the world, while it never seemed the right time to really commit to this expensive, difficult, dangerous and rather addictive activity.
It's OK, though: this feels like the right time, while for a long time it didn't. In that time, I read up and kept in touch with the horse world that way (including through this place!).