Screw that! Enjoy yourself every moment you can, not every moment in life is joyful and you should be greedy when you can. Fact is life can be a PITA and nobody around you who matters is EVER going to take anything but joy from your joy. If somebody doesn't like it they shouldn't be there.

Live, love, laugh, you'll live longer and be a heck of a lot happier then us old grumps. My SO identifies as a "little" she is the brightest point in my life and making her so happy she squees is my biggest joy in that life. Don't ever let anybody take your squees.