Easy solution.  Follow me around the course and you'll find plenty more.

In most Club Pro shops   they have used balls to pick from at lower cost than new balls   another thing   Practice    1 drill  for sure    see how  straight    not far you can hit the ball.  The straighter you hit the ball   more greens in regulation

    Sam Snead said long ago  The Woods are Full of Long Hitters    Rather be hitting after 240 drive in the fair way    than  hitting after 270 drive and being 30 yards in the woods

you can buy by-the-sleeves, instead buying a whole box for $45. Golf Club pro-shops sell them by the sleeve.

Saving a portion of your allowance would be good. How about part time jobs such as caddying? Anything that will earn you some cash to buy your golf balls.

Good luck

Perhaps ask the pro or manager at the course if they can use some part time help from you - start working there, or working somewhere, and then you can equip yourself with Pro V1s.

Also, you can get what you need from almost any ball, if you are passionate about the game, tee it up with whatever you have and enjoy yourself.  Yes, Pro V1s are awesome, but it is the golfer, not the ball, that determines the success or failure of each shot, each hole and each round.

Stop worrying about the ball, just think of shooting the best score you can.  Another idea - why not propose a deal with your parents: if you shoot a certain score or below with one of those other balls then you get rewarded with a sleeve of Pro V1s?

Good luck,

Jason 

Thanks guys I have found a job at a golf course for this summer and thanks for all of your ideas and help