how to share

Hello everyone! I have small issue - when I "clouded" file using my Pad I hardly could have founded it on my acc through desctop (sitting here through fb). I did need it to share it with relatives cause didn't want to turn my pad to PC. Just wanted to use cloud cause it's simplier and faster I thought. That time I found that file.

Now I have the same thing to do - but cant find option my files or smth like that in browser.

Remember it created a link and using that link everyone might have downloaded my file. Today I  don't know where to find it. Please help me!