iPhone is broken broken broken

Nothing works. Only thing that works is the on/off switch. Home button doesn't work at all. If I want to change apps I have to restart. But if I hold down home button when it's launching, the iPhone will go into recovery mode, so it's a software problem. And now, my phone won't charge. Idk if it's the charger or phone.

This morning, I had a full battery, 5 minutes later, it's EXTREMELY HOT, and I get the screen that tells me to charge the phone. 10 minutes after that, it's got a half full battery charge.

All this happened after I upgraded to 2.0 software.