i'm no phone expert and i'm really stressed about this. i recently downloaded snapchat and that took up so much of my space, 300mb. for some reason ever since i bought my phone it's had low storage. i have 3mb of cached data because i'm always clearing it but that's not helping. it says i have about 138mb left even with my sd card in and all my apps moved to my sd card. i can't download any apps right now because it won't let me.. please help asap!