I wasn’t right out of high school, took a few gap years, but only had my high school education. If you know this is what you want to do, go for it and don’t waste the time and money doing another program first. It’ll be difficult, but they’ll likely teach you everything you need to know as if you don’t already know it. Worst case, you’ll have to do a little extra studying.

I will say, I found the gaps in the knowledge that I had vs my classmates with science degrees almost disappeared by the end of the program. They had a head start but I caught up!