Galaxy Note 10.1 model GT-N8013 stock on boot

I have had this tablet for more than 3 months never had a problem with it until this morning first it wasn't turning on if I connected it to the charger the big battery icon was not coming on. I let it Cher for over an hour and now it is stock on the Samsung logo it comes on and off I don't know what to do. I don't want to lose my pictures and videos can someone please help me!