2016 12" Macbook trackpad acting up

[nph]

My 2016 12" Macbook has started to freeze the pointer and the trackpad doesn't react or extremely slow. Have to put it to sleep to make it work again.
I suspect the hardware is going bad since I have upgraded it to Ventura which is the least it can take. But it won't make sense to repair it I suspect given it is 7 years old and won't be able to run anything after Ventura. I love the size and portability but it is now used by my son who will need a new laptop for college next year. Anyone has any idea if this is something easily fixed or do i bit the bullet and buy an Air

 

[Pcar]

I just replaced the trackpad ($70) and associated flex cable ($20) from Ifixit for a 2017 MacBook. Took about 30 mins though I'd previously replaced the battery so was familiar with working inside the case.

Retina MacBook 2017 Trackpad Assembly Replacement

Use this guide to replace the trackpad assembly in your Retina MacBook 2017. This assembly includes the trackpad and the Haptic Engine.

www.ifixit.com

Excellent repair guide for replacing these components.