I'm a little jealous of my cousin?

I know it's bad to be jealous, but I don't know, I feel like I can't get away from it. For Christmas she got an iPhone 5s and she's 11. I had a little Nokia phone, all old and broken for 5 years, and I'm 17. Her parents aren't that rich, and my mom isn't neither, but I know it doesn't affect me, but I feel a little jealous. I know it's wrong too. I'm grateful for what I have, but she's kinda spoiled, and I barely get anything because I only have my mom and she works hard, for a check that isn't that big. And today was her birthday, and they're throwing a birthday party for her with all her cheer friends she just met, when her parents could barely afford it. And I don't have birthday parties. Never a sweet 16 or quinceañera and not like two presents. And a dinner with me, my mom, and friend. And no one at school wishes me happy birthday, I know they can possibly know without me telling them, but I feel weird saying "hey its my birthday!"
Anyway, I know it's not all about the material things and having your loved ones is what matters, but I can't help but feel a little jealous, since she's only 12 and has it better than me who is 17, but I'm grateful for what I have. I guess my question is is it normal to feel this way? Should I be ashamed for feeling like this?

Dude this is normal. This happens to me too. I hate having this feeling cuz i was taught to appreciate what you have and who cares if other people have more or less and blahh blahh. But you can't change your feelings! I'm guessing its just our destiny. Sucks i know cause other people have it easy to get what they want while others have to wait and work hard to get what they want.

Very normal to feel that way.

  • Why would he try to make me jealous? The guy I like has A Iphone Plus it seems like he kept turning his phone my way to see if I would be noisy and see who was texting him. I did not look even though I wanted to but I'm not his woman I'm his friend! Why would he try to make me jealous knowing I like him? Maybe just because something to do to get a good laugh!
  • Why is everyone jealous of Apple? Why are so many people and companies jealous of Apple? Can't they just admit that Apple is the better man among them? They make the finest hardware known to man, devastatingly stable and productive operating systems and applications, and extremely good technical support, Google and Windows have tried to take on Apple but to no avail, they fail miserably, as Samsung failed miserably in patent infringement of the Iphone, so why can't everyone just admit that Apple is the best? Why?
  • Why are other people jealous of those that are wealthy and successful? Is this a mental disorder? What if you make fun of the jealous person and they hit you out of jealousy? i showed an iphone to the people in my class and one of them started to scream at me and i told him to calm down then he tried to claw my face i'm 15
  • How to stop being materialistic and jealous? My girlfriend just got an iPhone 6s and I'm being irrationally jealous of it. I'm 18 and I still don't have a working phone. I play sports and I'm trying to go to college and play a sport so I really don't have time for a job and my parents don't believe in spending money on stuff like that. I know it's materialistic and stupid but I feel really jealous of her. I don't really know how to handle it.