Have you thought of searching exactly what you are asking beforehand?
I'm sure you figured that everybody has to learn that, we're not born with that knowledge, so the question has been answered a trillion time already.
Just try to Google that first, and try to research yourself first before asking things that a lot of people before you asked.
I'm telling ya, you don't need to ask these, most of us found these answers without having to explicitly ask to someone. You don't need a degree or anything like that either, just be able to read and use Google
Don't take it bad, being able to research will help you even more than if we were to answer your questions, heck you can even use chatgpt (the free version)
Otherwise if you are old school, I'm sure you can find some books to rent at the library
We live in a era with all the information at our fingertips, more than ever.
There's no valid reason to ask basic questions anymore, other than laziness
Remember that we've all been new, we are new to new things everyday, that's just life
