Are you're siblings like this too?

Before I start I'd like to say that the younger generations are growing up too fast (You'll figure out why I'm saying that in a minute.) So, I have one younger brother. He's 10 years old and he's getting a phone on thurs., he has a laptop, and he pretty much gets whatever he wants. He's bellyaching to my dad right now to get him a pool and bellyaching to my mom to get him a mini bike or a dirt bike. He thinks he's so cool and he treats me like **** all the time. He also thinks that if I get something (I usually have to pay for the stuff I get), he automatically gets one too. When I go to the mall shopping, if I'm with my mom, she get something for him, and if I'm on my own my mom tells me to pick something out for him because if I don't, he has a big fit and says that he never gets anything and that they like me better. Like today, I went to target and got myself a headset and some stuff to make smores with. When we got home, my brother came into my room and said, " You have a headset?" and I was like "Yeah?". He asked me why I didn't get him one. (This happened about 20 minutes ago) I told him that he can get one when he gets his laptop fixed (he crashed his computer when he downloaded some stuff of the internet and I'm pretty sure he got hacked.) He's probably complaining to my mom right now, and I'll be the one that has to go get him one because I told my mom that she should wait until his laptop gets fixed, because it's no use having it when he can't use it, right? So I was on skype with my friends when he came in and he said that he wanted to talk to them. So I unplugged the headset and said "Talk into the microphone", and he said that he wanted to talk through the headset, which was on my face. I told him he was being ridiculous and that they're probably going to tell him to go away anyways, and he punched me in the arm. A legit, punch it the arm. I seriously think he may have broken a few blood vessels because it's all red and there are two decent sized cuts on my arm (he plays baseball and lifts weights- growing up to fast much?) After that, I told him to leave and he told me I was a jackass, and slammed my door shut (?) Again, he's probably complaining to my mom, and I bet I'm going to get in trouble because he's going to tell them I called him a jackass and that I punched him in the arm when he asked to see my headset. Am I being ridiculous or am I right?