How to know that you've got the "right" labels:

Personally, I don't think that there's a way to know which label is "right." Gender/Sexuality is not a set thing, and what we feel can change over time. The "right" label can change on a day-to-day basis, and there doesn't have to be one label that you will always have.

If you feel comfortable with the label, and you feel like it fits you, then that's the label for you. If your label changes, it's still the label for you. There's nothing wrong with changing, and if you need convincing, ask anyone here whether or not they'll judge you.

Of course, it's completely fine not to label yourself at all! If you don't know what to call yourself, but you know that you're not cis/het/cishet then you don't need to label yourself.

I hope this helped! :)