Hello, I’m Virginia, a fellow user like yourself.
Sorry to hear you’re experiencing problems.
Is there a Touchpad entry under Settings>Devices? Are there any of those settings there?
The newer Elan/Synaptics driver seems to break the touchpad settings so that you cannot turn the touchpad on/off or use various scroll options.
Try installing the Microsoft precision touchpad driver:
https://www.tech-recipes.com/rx/66163/how-to-install-precision-touchpad-drivers-on-windows-10/ This will add extra touchpad options under Settings>Devices>Touchpad.
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products).
Please do not download any repair tool which may be offered by this site other than the ones I mention/recommend.
Thoroughly research any product which is mentioned here before you decide to download and install it.