Possible to change Processor?

Apr 29, 2019
Is it possible to change the processor of an HP Envy? The current one is an (just reading from the 'systems' page on windows) Intel(R) Core(TM) i7-8550U CPU @ 1.80 GHz 1.99 GHz. It's 8th Generation
If not, is it possible to somehow upgrade my computer? I have 16 GB of RAM, but I'm not sure about my graphics card. I assume that cannot be changed though.