So I'm trying to follow builds from here:

https://www.neoseeker.com/pathfinder-kingmaker/builds/Main_Character

It gives you the recommended skills but skills have limits as to how much you can put in a specific one at each level so there are points still left after I give points to the recommended skill types and hit a limit. Should I just give the points to any other skill type? It doesn't allow you to move on without doing so.

Can you respec/change your race in this afterwards?

I can't get a clear answer.