Magento 2 how can he create a configurable product with a selection of attributes?

Please, how can he create a configurable product with a selection of attributes? (by manual selection)

The point is that I need to select a parameter for each configuration that it should meet. (not every variat has the same parameter)

I need to select from attributes:
Example:
T-shirt:

Size
XS
Color only blue

Size
S
Color only green

Size
L
The color is red

Sometimes I need to add 3 attributes.

Something like this:

Model: XS Color: Blue Width: 30

Model: S Color: green Width: 50

Model: L Color: Red Width: 70

The generator will automatically create each color from each size.
I have products with 25 combinations.
When it creates 25 configurations from each combination and I have to delete 24 of them for each combination, it’s complicated

I would need to choose which attribute should have which product.

Can you advise me how to reduce it?

Thank you