Sanitising substrate

Hi everyone! I’ve decided to go bioactive for my Hognose snake. I’m gathering all the materials but I have a doubt. Do you sanitise your soil/drainage layer/plants or you put them in the enclosure raw? I’m going to use pine bark as drainage layer, soil mixed with sand and Sphagnum moss. I bought organic soil, and I sifted it, keeping only the soil without all the little sticks and stones. As for the plants, I think I’m going to wash away all their substrate, dip them in a 10% bleach solution, rinse in water and repot with sterile substrate. Then leave them quarantined for two weeks, after which I will plant them in my terrarium. Am I worrying too much?