There are some great things you can do to soil before planting to make it easier for you but I don't know any of that lol. I am a beginner like you and I suggest using 1 type of soil all the way through. Fox Farm Ocean Forest is a good beginners soil but gets a lot of flack for its over abundance of nutrients that most times will burn seedlings a little. I had that happen to mine and ended up transplanting to a bigger pot with the same soil. Everything above the burnt growth is green now. No matter what soil you use, if you can find dolomite lime then you should also look at mixing some of that into the soil. It will maintain a stable pH as well as providing magnesium and some other nutrient I can't think of at the moment. I wish I used dolomite lime in my grow but I jumped the gun and planted right away without thinking. There are a lot of things you can do before hand to make it easier on the maintenance of your babies.