Got sextorted and im a minor

I’m 16 years old and my friend was on Wizz when he was texting a random girl asking for “fun” and he decided to send the girl my number instead of his own. I started off texting the girl normally and then she later asked for a full body pic of me naked. I complied stupidly and then she wanted to move the conversation over to insta. Which I then gave her my insta and then immediately I get photos of my following and threats to send the photos I sent to my friends and family. Out of complete panic I asked the dude what he wanted. He asked for 500 dollars but I’m a jobless teenager so obviously I couldn’t come up with that. I asked if 20 would do and he said yes, after that I thought it would be all over but he immediately asked for more money. I ended up going to the store and getting him a 25 dollar gift card. He showed me on FaceTime that he deleted the photos but then showed me a database of probably 100s of other dudes who got scammed the same way. He said that he will delete it from the database if I gave him 100 more dollars. At this point I was done and knew I couldn’t do anything so I asked him to give me some time. I told him by July 1st I would get him the money and he would text me each day to make sure I wouldn’t block him and if I did he would send it to everybody. This happened today and I just blocked him a couple hours ago. This has probably been the most stressed out I’ve been in my life so any advice would help.