I'm jealous of my friends?

I'm 13/yo girl
Their parents have a lot of money, they're all showing off their iPhone sevens, heck one of them is getting the XR for Christmas, one of them has an Apple watch. I often see them on Instagram/Snapchat at parties looking all petty in their cute, expensive dresses, with their friends. They say happy birthday on social media to at least 2 people a day, therefore, they have more than 365 friends. My friends include: the 5 of them, three eleven year olds and a nine year old. They don't know I'm jealous by the way. What should I do?

Added (1). *pretty not petty

You could try growing up and appreciate what you DO have as opposed to what you DON'T have.

If you're jealous because they have friends and you don't, whose fault is that?

Yes, yes you are. See the first answer as to what you should do. I bet you are not mature enough to do so.

Be jealous, see what it gets you over time. If it gets you what you want, keep doing it. As with everything in life you only have control over the things you say and how you react to the world.

You are incharge of how you feel.

Don't be superficial. Change your attitude and DON'T BE JEALOUS.

It sounds like you are envious of the material possessions of your friends. Any kind of envy deprives you of happiness and self-esteem.

And y should you be jealousy about them be proud of what your parents gives u fight about your future and focus to aim high

And y should you be jealousy about them be proud of what your parents gives u fight about your future and focus to aim high