She has bought some cloth.She will make/is going to make herself a blouse

Question

She has bought some cloth.She will make/is going to make herself a blouse.

My Approach:

I am confused here which to use.I think both can be used in reference to action whether she does in future or she is going to do it now?

Am I right in my approach?Please correct me if I am wrong?

Answer 1

is going to is the marker for something in the near future, or something that's about to happen.

will is the future tense marker, and the future tense has no such specification.

Essentially, use is going to when she's about to do it, while will can be used to mean at a later time.