To me, everything you've said makes complete sense.
It makes sense that you are questioning in self discovery. But I think in time you will come to terms with things in your past and come to terms with your desires for your future.

It makes sense that trying to open up after closing off that others find your level of openness unexpected.

It makes sense to want to trust again but have fears of trusting.

Why does this makes sense? Because I think the entire human race goes through the same things (to varying degrees, of course)