If I’m expecting someone I make mine sit and stay until the person is in the house and I make sure to greet the person first, those steps alone helped out a lot as mine is the same age and had the same problem. I also jump train her a lot though so she gets used to jumping when instructed and doesn’t do it much otherwise.. so far she can grab a tennis ball 6 ft out of the air and is improving constantly!

*She is definitely antsy while I make her wait for the person and have to remind her to stay a few times because she’s so excited to see a new person.