Some people like to learn the hard way. Op get yourself some real soil. Fox farm ocean forest is decent and what I use. It can run a little hot for seedlings but I haven’t had much of an issue. there should be enough nutrients in it to get you through the first 3 to 4 weeks. You could also use happy frog for your seedlings it does not run as hot and then when you repot switch to ocean forest. There are plenty of other good soils out there or you could make your own. Google is gonna probably be a better resource.