You are young and have an S.O. that knows and you are able to be yourself with. That’s huge as many keep it secret from their partner making things later down the line very hard. You should not be embarrassed or ashamed and hope you feel that way . You are not doing anything wrong and I think it’s a gift. ( btw I'm a GG)
Keep being open with your partner and take this journey together finding your way together. Best Wishes