I (21M) sent a dick pick in an Insta reel to a FWB (23F) how do I delete it?

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Okay so I've been sexting this woman and I wanted to send her a dick pic but I have not done it and I accidently sent it as a reel a few seconds went by but I was able to delete it. My family follows me and I am so emmbarassed what do I do? I deleted it but is it still there? FUCK!!! I need some PR help if any of my family saw it what do I say?? Shit I might need a new instagram and proably need to change my name now. If anyone has done anything super embarising please share cause I feel like I'm alone in this.