Greased

I wouldn't worry too much about the ball you are playing if you are losing so many. I'm new to golf myself and have had rounds where I lost plenty of balls... I try to buy "4A" graded used balls. I have had great luck with "jerrysgolfballs" on eBay... With the 4A graded balls, they are near-mint condition and you can generally buy them in lots of 48-100 balls at a time for around 75 cents per ball.