(((mouse)))
I guess you mean by your own actions, in that you placed yourself in those situations where bad things happened?

I don't see where you were doing or causing any of that.
Yes, you can be a "normal" pet again.

It takes many times going out, in this instance, where you experience the good stuff you just did, to prove to yourself that it is a different environment than what you first experienced. That is, if you continue to do good self care and don't fall into the exact same situations as before where you may have been out of control.
Why bother with analyzing what the reality was then compared to today though? Maybe you weren't seeing all that it really was then, though it sure sounds bad to me.

But it isn't today. You're wiser now.
TC!