Does the GH file you posted work for you without a Rhino file where your points are defined?
It’s important to understand what “internalized” means. You could post the Rhino file that has the points but when it’s only a few points and/or curves, internalizing them in the GH file is easier for everyone.
3. Attach minimal versions of all the relevant files
As to this thread topic, there are so many examples of attractors on this forum that some of them certainly include examples of “different strengths”. It’s as simple as multiplying distance by a separate factor for each attractor.