I'm going back to every person I ever liked in high school and hooking up with them
What did you like about these people from high school?
I always got along with them and found a lot of them really attractive. I regret never pursuing any of them.
While we all have regrets when it comes to love, you shouldn't go back and try to get back with all the people that you once liked in high school. People will think that you are creepy for never moving on and not being able to find someone to date in your own social circle. Additionally, it isn't good to be promiscuous and try to sleep with as many people as possible since it can cause both health issues with STDs as well as emotional problems from using people.
So everyone's a slut. Plus I don't have to care about my own health.
Having these views about these people is really inappropriate. I would highly advise you move on from these past relationships as it will only continue to affect you mentally down the line.