How to create code from scratch with Cursor AI ? Always USE CONTEXT?

I used to do it in ChatGPT and break it into steps and then go through each step pasting in with code…

So now trying it with Cursor AI … First question is when do I ‘use context’ ? I create a starting template and paste in my paragraph description of what I am doing but I am not sure … Maybe I should uncheck context since it will already be aware what I am doing from the chat since I am doing it from scratch?

Or another way to put it… When is ‘use context’ a bad thing ?