do what you want cause if you do something you like you dont work a day in your life you have to communicate with her if she loves you she will respect your chioce but dont forget she just wants the best for you
You have to tell her. If you don't want to play volleyball all throughout college, then you have to speak up. The only reason your mom wants to get you a scholarship is because it'll help pay for your college tuition. But I bet she hasn't considered that you don't want to play volleyball. It's your future, so you're the one who gets to decide.
Don't go for something you don't want, because you'll never be fully happy with it. Tell your mother truthfully what you think and how you feel about it. It doesn't matter if you get paid a lot of money, as long as you're not doing something you want to be doing.