Started practicing for the first time today and have some questions

so it begin my skateboarding experience consists of a YouTube short and about 30 minuets of practicing how to go straight on a flat road

but I have some questions and was hoping someone would be able to answer

1. when should I start learning to turn?

should I learn as I go straight or should I get good at going straight first and THEN add turning

2. how do I stop turning the skateboard accidentally?

so because I'm new I sort of wiggle back and forth a lot and that make the whole thing start turning slightly. do I just keep my weight center?

3. when I do learn to turn how far should i lean?

4. is the foot placement the same as on a scooter?

5. how do I stop the board?

6. how much bending should my knees be doing?

also any tips are GREATLY appreciated if yall have any