Phone Overheated and now isnt working properly.

[Adaz123]

Hey guys,yestetday before I went to sleep,My phone Overheated and so I tried to turn it off.The power off button didn`t work , so I had to force shutdown.Now,In the morning, I turned on my phone and realised that the boot screen was lagging which was weird.When my phone started, the wifi wont connect and tries to scan the network to find nothing and now wouldnt disable itself.Futhermore, on the status bar, most of the items, when I try to disable, doesnt disable and now, when I enter my pattern unlock, It doesnt accept and just freezes up. Any help?