What do I do if I have possible pcos?

So ever since I ve entered my twenties my period had been irregular. It was off for like 4 months came back on and if was doing well till now it missed last month and hasn’t been on yet for this month. I have facial hair. Especially on my chin i pluck it but I’m scared it’s going to become worse and worse. I have some farther on my face like the sides and now I’m wondering if I may have pcos. The first time I was prescribed birth control but i wasn’t consistent so I quit it. But will it help reduce chin hair? I don't know what I should do
What do I do if I have possible pcos?
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