That is really cool of you, for not going behind your parents back, good job Jordan!
This is the OP’s quote about how many clothes his sister already has. $500+ on top of this is definitely “extreme.” No one needs this many clothes on their back.
“I know she wants me to be happy, but seriously, its not fair for my mom to be providing funds for my sister who is spending it on clothes that she clearly does NOT need when she can’t fit all her clothes in even 2 rooms. I’m 13 and I have money to blow.”
Well if you will not go behind their back, then you have to be straight up with them. Talk to them honestly and share with them how important this hobby is to you and that you are not content with the maximum of 1 yoyo a year. They SHOULD respect your wishes if they are truly caring parents. I dislike how many parents try to control their children, that is not their goal. The child is not a slave to the parent, the parent only serves as a guide to help progress development
I see their point. You know, through all of this, I believe that this is in fact a gift in disguise. It may seem un fair on the outside, but my mom’s reasoning is good. Maybe this will make me a more content person even though I may feel discontent so far.
Save all your money, wait until your 18, then buy 100 yoyos at once ;D
Loooooool thats a long time from now…
Well you got a lot of time to consider what to get 
i promise you that you will be jumping and crying for joy once all those yoyos arrive 
Maybe compromise? 2 yoyos a year? 2 trades.
Problem is, I don’t want to wait to be an adult. I’m only going to be a teen for a little while and I want to make the most of it.
How many yoyos can you be given per year?
Given? What do you mean?
I have a simalar situation ,but have you thought about the possibility of getting it as a gift or asking to buy more as like a gift to yourself on special occasions like Christmas (if you celebrate Christmas) ,or your birthday?
I wish I had someone to limit me buying yoyos. My lack of willpower and raven-like fondness for shiny things is taking it’s toll on my life savings…
Yep yep yep
That’s going to take some explaining to the parents XD
Yuki
You’ll still be a teen when you are 18 and 19 and heres an idea… Ask a friend to buy you the yoo andpayhim back a little afteryou gettheyoyo 
As I said before, I will NOT do anything behind my moms back and she keeps my money anyways.
Then buy a hundred pack of my jackrabbits.
You could make the single purchase really, really count. Save up for a year and then get a yoyo recreation maybe? I am not saying that your situation is fair, but I am trying to see if you can make it a little better. Also, how much string can you buy? If it is limited, it might be worth it to pick up some Kevlar string as well.
I guess if you’re limited to just one a year, that makes the yoyos you do have just that little bit more special.
Yuki