Ah, a fellow INTJ I see and a female one at that. Female INTJs are like unicorns because of how rare they are

Anyways, people like us have our own sets of challenges, especially if we had to grow up in less than ideal living situations or had to deal with any type of abuse or neglect.

For us, finding and keeping friends can be difficult because we are stuck inside our heads and involved with our own lives and ideas so often. On top of that, we seem to scare people with how cool and collected we tend to be most of the time. But even us kings and queens of the introverts need people to understand and accept us. After all, we are all social creatures, yes?

With that being said, I would suggest trying to find meetups with people like you who are either introverts themselves or have similar hobbies. Perhaps you have a hobby that doesn't pertain to your business? Or perhaps you could find like minded people to discuss ideas with? Try finding a club or meetup of some kind for people similar to you. I know for me, I'm into computers, technology, anime, and other more "nerdy" things so I have had to seek out people with similar interests to be able to have friendships and even then, most of my friendships are online.

Finally, I don't think having a spouse or children is a necessity to be happy, especially for us introverts. I think having a few close friends to spend time with is enough to feel a sense of belonging. As for a legacy of some type, I'm sure the work you would have to put into having a business will accomplish that without the need of children.

You are a special person who is certainly worthy of happiness. After all, female INTJs are what? 0.2% of the human population? Don't think that you aren't special because you are.