Improper performance of prayers (namaz) and ghusl in the past

I've been praying since I was 13 years old, but now I'm learning about all the new nuances that, as it turned out, made all my prayers invalid. First, I learned that during ghusl, you need to wash the skin under your nails, straighten your hair with your fingers so that the water reaches your scalp, and rinse your navel, but I didn't do that because I didn't know that I need to do it. I performed a new, correct, ghusl. It's been 1 month, and now I've learned that during prostration (sudjud) you need to touch the floor/carpet with your nose, but I didn't know, and I didn't touch the floor with my nose. Question: Do I need to make up for all the previous prayers now? Now I am afraid that I will do prayers, and after a long time I will find out about some minor nuance again, and again all my prayers will be invalid.