Is it normal to be so jealous and angry that i am an only child?

We can’t see your user name, posts are anonymous. As far as being an only child, write those memories down so that you can share them in the future, with a great friend or spouse. Siblings share memories as they remember them, the feelings they had aren’t identical.
At some point you should also ask your parents how they want to be cared for when they are elderly. They may already have a plan that they just haven’t shared with you.

Honestly having siblings isn't all it's made out to be. My sister has autism and will possibly be living with out mom well into adulthood because of it. Growing up with her was hell. I don't hate her, all I'm saying is siblings aren't what you seem to think they are. you seem to have it in your head that it's all picture-perfect when that ain't always the case.

i think in china there are 1.5 billion customers with no brother or sister in the family, and you get mad? the only thing you missed out on was some wicked good incest. unlike you i fucked my cousins .

Actually it kinda sucks to not to have a brother or sis. I am lucky that i got both but you can share your memories or feelings to your closest friend

I'm the oldest of eight siblings, and I think brothers and sisters are very overrated. My parents weren't horrible people, but there's only so much time, energy and financial resources parents can devote to their kids and, looking back, I think that having it split amongst so many children really kinda sucked.

As for your rosy "siblings are forever friends" idea, that's total BS. I moved out when I was 17, and I've happily spent most of my life on the other side of the world from my siblings. Two of my sisters ended up hating each other after one had an affair with the other's husband out of spite for some perceived offence, and they only reached a sort of truce when one was on her deathbed. There are all sorts of tensions between the others (some rooted in childhood jealousies), and none of them choose to spend much time together.

You can't change the fact that you're an only child, so there's absolutely no point in feeling angry and jealous. You may not know other single children, but it doesn't make you a freak, and it doesn't mean that you're automatically disadvantaged in life.

"What if" questions can be interesting if you're thinking about big historical issues like who won wars and such, but they rarely lead to anywhere positive if you're thinking about personal history, particularly things over which you had no control.

We're all dealt a particularly hand in life. The cards are an important factor in the sort of person we become and what we do with our lives, but what we choose to do with those cards is just as important.