Am I overthinking or should I give up on trying to have a friendship?

My friend and I recently reconnected (about 2 months ago). We were friends in high school and now we are both married and moms. I have tried reaching out a few times the past 2 weeks with no response from her. I know we are both grown and have our own lives but I can see that she is posting sad things on social media, so I reached out on the social media platform and simple said “Hey girl how are you doing? Just wanting to check in on you” and still haven’t received a reply yet she’s continued to post things. I have like no friends so I was trying to build a friendship again but I’m conflicted and whether I should keep trying or just give up. Things like this give me so much anxiety and I end up overthinking. 😔

Adding to this- I feel like it will be weird if I reach out again considering I’ve texted and messaged on social media and I’ve been ignored.