My best friend died yesterday

I’m 16 FtM who lost his 16m best friend yesterday and we were neighbors. We’d been friends for about 6 years and yesterday his grandparents came and told my parents, since his grandpa couldn’t tell me without breaking down. I thought they were lying, some sick cruel joke and I still wish it was. I feel lost and can’t get out of this cycle of the sadness, pissed off, then numb. It’s awful. My chest hurts physically, I’m trying everything to distract myself from it but I can’t. I had to tell most of our friends since his grandpa couldn’t get into his phone, which made it worse because I had to witness their reactions first hand. They all thought the same I did, some cruel sick joke, unfortunately it wasn’t, I’m still waiting for a text or anything, something that is like hey, this was so cruel joke we were playing, I know it’s not, but it feels like it is. We never got to do anything we planned either because I thought we still had so much time and there was secrets I’ve kept for him, I feel like I can’t even be in this neighborhood anymore. He always told me about how he planned to move his wife and kids into the house he was living in since it’d be passed down from his grandparents and now he won’t even be able to do it, he’d talk about how he’d renovate it too. He grew up there, I can’t imagine how his grandparents are feeling right now. I talked to them some yesterday and they don’t know if they can live there and I mentioned taking his phone to a phone shop to see if they could get into it and his grandpa told me he was planning on burying it with him. I walked home after that and sobbed, we’ve all been checking in on each other (friends) and talking. I wasn’t even able to get out of bed until 7 PM anytime I did, it just felt like sandbags weighing me down, I feel so lost and don’t know anymore, like that was my bus buddy, neighbor, best friend, and everything. I feel like I can’t sleep without a friend on the phone now, this morning I woke up and security breach from Markiplier was playing and it just instantly reminded me of him and how he let me borrow his security breach game. He was the biggest FNAF fan you could know, and he was an amazing person, I’m so fucking upset and angry that he’s gone, it’s so unfair and I just have to ask why. I know I’ll never get that answer but it truly makes no sense.