Where are you trying to go to school ?
Mom is likely wrong in this sense - schools want you to do what you want to do !!
We read every day about kids that have papers published, are involved with the highest academic extra curriculars and get rejected - 4.0, perfect ACT and all.
We see others who worked in fast food get into Ivy.
There is no one size fits all. There are no assurances.
What do you enjoy ? What can you describe with passion ? This is what you should do.
Sorry mom.
Ps find 1-3 great things and go from there.
Many, even maybe most colleges, don’t care about ECs at all so depending on where you look it may not even be a question.
You have one life. Make it yours - not moms.