M in SF, heck you're still young! At least from my perspective. I'm almost 53.
Sure its daunting to be on your own. But, embrace yourself and find out who you are now. If you want another relationship in the future, you will find one. And if you keep moving toward understanding yourself, this time its much more likely to be a good, healthy relationship. That is what I am doing.
And remember there is a big difference between being on one's own and being alone. No one needs a BF/GF/spouse to be a complete person.