Tasks with date range

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What I’m trying to do

I found this code which I included in my Daily Note Template. It shows me all open tasks due at that day:

	.where(t => !t.completed)
	.where(t => t.text.includes("{{date:YYYY-MM-DD}}")))

Things I have tried

I would like to create another section displaying task which are due within the next 7 days.
So whenever I create a daily Note I see the tasks due today an d below that the upcoming tasks.
I am no programmer and tried a lot. Nothing works. Can you help?