This forum is a community site where users help each other out. It is not a commercial support offering. Most people responding are doing so just for the satisfaction of helping others, and to enhance their own learning.
Your questions are incredibly broad basic ones which are fairly well covered in the Vault documentation. Please start there.
Asking for clarifications about things in the documentation is absolutely fine and welcome - but expecting unpaid volunteers to give you a custom bespoke course in using Vault, whilst you avoid using the documentation is unrealistic.