How can I trust again?

When you’ve just got out of a long toxic relationship how can you trust that people have good intentions? I’m trying to move on but in the back of my mind when I’m talking to this new person I’m always asking myself if he’s being genuine. Most men my age are only wanting booty calls or at least the ones I’ve came across. I’m a single mom of four. I don’t get out much. The only option is online. This man seems to have it all. He’s secure he has stability and he’s so sweet. What do I do? Like I’m a damaged individual I’ve been miserable for the last three yrs. My last relationship was 7yrs. But the last three he became abusive in every single way. I’m just don’t want to get back into a relationship like that. Any advice?