I can't be sure if there are problems within my relationship.

I dont usually share stuff like this but I know I am OK to post . I can't help but think something is not going right. I know all relationships have twists and turns . I'm wondering if it's my mental health that's making everything go wrong.  I was married once before that ended in divorce  I struggled after the children were born . I dont know what to think . I could be over thinking then again not . This is one of the first times I've been open about this issue.  My grown up children think I'm foolish for even considering being single again.  ?????????????????? I dunno . Life eh its never easy going is it .