The important indicator imo isn't dysphoria per se, but euphoria. If you for example were to feel fine either way but feel happier being a guy, then that's a good one.

The way I came out was basically figure out how certain I was of it, then tell to my most trusted people, then spread outward.

Edit: you also don't have the obligation to explain it to anyone. Just as nobody is owed to explain to others that they're cis, so too is nobody owed to explain their transhood. It does help to communicate, though, but think about it at your own pace.

Only you yourself can decide for yourself who you are. Experiment, try out, do what helps. Whatever you feel best, be that guy-, gal-, enbyhood or whatever else, it's all valid. Feel free to ask me anything!