Idk how to come out to my dad

Just what the title says. Idk how to come out to my dad. Now to preface, my dad is an awesome guy and he totally loves me and my brother. He even came to me asking if he should send my brother anything during Pride month after he came out. But like idk why I get so scared when I think about telling him I'm Pan. I've tried to soft launch it in the past but I've chickened out so many times. I have a small Pan and progressive flag in my room but he's never mentioned it. He asked about the Pan flag colors I have around my tiktok pfp and I just told him I liked the colors. I have "YURI" as a tag on Discord and he asked me what it meant and I gave him a vague answer about it being a kind of manga. I hate how I feel like I have to tiptoe around this topic when it comes to my dad but I just dont know how. He's truly chill and in no way hateful or bigoted (theres a reason that I primarily live with my dad rn over my mom) but I get too scared. It's been ages that I've wanted to tell my dad that I'm Pan but like I panic every time I think I'm ready. I think the best course of action is to just text him instead of doing it in person like ripping off a bandaid but I still panic about whether he asks me about it after. 

I rlly don't know chat.😓

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ive had similar fears. it seems like he's supportive, i'd say just go for it. if you're too scared to do it straight up then maybe try hinting to him at first like i did.