jefmcg
Guru
If you have enough space, try installing https://play.google.com/store/apps/details?id=com.google.android.diskusageI emptied the storage last year but it still said 93% used!!
that will tell you what is actually taking up all the room on your phone.
What input method are you using? I'd recommend https://play.google.com/store/apps/details?id=com.touchtype.swiftkey, but you probably don't have room for that.