Is this co-worker a good friend of yours? I usually leave my personal stuff out of the work place unless I am good friends with the person and trust them not to gossip about me. I’m more curious why you went on your day off to talk with her when she was working. Was she on the clock or did she take her break when you came in?
I know this probation is a scary thing, but I don’t think you have to crawl under a rock. I do however think you need to work on thinking about things before you do them. Just stop and ask yourself before you do something. “Do I really need to say this to this person?” “Do I really need to go talk to my friend at work on my day off?” “I think this person is leaving the accident- so should I?” (You know now the answer is no to that 1 question) It is about making better decisions in the moment which is not always the easiest thing to do, but can be done if you train your brain correctly. You can get the help of a therapist of life coach to help you retrain your brain. I think a piece of getting through this probabtion is to really think about what you are doing before you do it. If you can find a way to do that-it will be okay.