how can i update my macbook pro earlier 2011 to a macOS Ventura?

f the user whats the latest and greatest versions of macOS, all is not lost.

Explore the Apple Trade-In  Process where the Value of the exiting device could be used against the cost of a new Apple Computer, iPhone or iPad  

Or Shop Refurbished Apple computers at an Apple Reduced Cost

Have used both previously and have been satisfied each time.

You can't. High Sierra is the latest version you can run.

You're welcome.