So I am trying to make stuff on Inkscape but I would like to get this result.

To check it click attachments but when I tried it, it went horribly.

So Any help is appreciated, Thanks!

Ok, it looks like you want to make color stripes. Is that the general idea?

I mean if it makes the lines then yes

Still need an reply for this because ill use it very soon thanks!

Here's one way, of many ways. Using a yellow rectangle to clip a group of red lines and rectangle.

also how to do it with strokes I tried it but it just change the color of the stripes

Please describe in greater detail what you would like to do.

so the striped shape video you gave me right? well if I press Shift + Left Click it just changes the stripes not the objects stroke so is there a way of how to put strokes in it also?

I would make another rectangle the same size with only a stroke and group it with the striped object.