Why won't my Phone won't turn on and How can I fix it?

[DemonKatherine]

Last week my phone ( samsung Galaxy exhibit) was running low on battery and I put it to charge but when I did it said too many programs open in task manager. I had personally never used the task manager so I had no clue how to use it and seeing how it was 3am I was beat and fell asleep without properly charging it. ( I just couldn't at the moment and forgot about it.) The next day I woke up and put it to charge but it doesn't turn on. I have tried the charger, the SIM card, The chip , pluggin it into the computer but no luck. Please help.