I share the part of your story about liking computers and getting a wonderful career out of it - I currently work remotely in a low cost of living country making six USD figures, so I'm quite well into the 1% income bracket locally. Up until maybe a year or so ago, I'd been in 3 relationships, all multi-year, including a long distance one during university. It always felt that I had been missing out on the "single guy" part of life, and looking back now, my relationships weren't all that fulfilling; mostly they were probably a way to not be alone, although I still felt alone, and was ok with that.
This past ~year I've been out casually with many women (maybe something like 15?) and... It's fun, but obviously it's not fulfilling other than for ego reasons. I think the main positive thing in it is that I know it's "just ok" and don't have to wonder about it; if I had committed early on this would likely be something that would always be on my mind. What if I was letting my best life go by? Well, I haven't found ultimate happiness, but I have found comfort in the fact that I looked for it at least, and won't regret not having done so.
For me, casual relationships aren't really fulfilling, and committed ones aren't either. I've learned to be alone and even a bit alien from early on, and don't resent it.