Was your whole plan about having a family in your 20s? If not, then I don’t see how the lack of a significant other matters. What career plans do you have? What interests do you have? Also, keep in mind that validation should come from within, you shouldn’t let anyone (or their absence) define how you feel about yourself.
Talos Principle, without a doubt. That game feels like it was made for me, I love puzzles, computers and philosophy and the first time was such a blast.