Is it normal to only have started masturbating at 19?

Pretty much the title. I'm now 21 and only masturbated few times.

The first thing that's going to come to your mind is "you were raised in a conservative Muslim, Christian household". No actually not. My parents are non-religious but not atheist either.

I also wasn't really told anything about sex. I thought weomen had penises until I went to 7th grade. It's only until someone told me about porn that I watched it. I found it very arousing however for some reason I still can't figure out, I could never masturbate to orgasm/ejaculation.

You might have seen my other is it normal thread about jacking into my mothers friends high heels and that's how I started. I remember actually the most aroused I ever was to the point of cumming was when my mother invited some friends when I was 12 and they all left their high heels at the door. I got REALLY aroused but again, I didn't know what to do so I just licked them.

I got my testosterone levels checked twice and apparently, everything was fine. Though my doctor didn't say much about how to masturbate and what the issue might have been.

It wasn't until I was 19 that I successfuly had an orgasm. I rubbed the head of my penis on some leather boots and came. Don't know why it took so long. Perhaps my hormones changes as I grew older.

Anyone have this experience.