Guys please I need help!

So basically i logged onto a "friends" account to see something, i then logged onto my account and it seems his saved in game settings were saved for some weird reason. As a result, his in game settings are also my in game settings and i have absolutely no idea how to change them back.. They are so bad that i cant even left click to buy items and such. In addition to this, i can barely play to my full potential as his key bindings are so confusing. So please if anybody knows how i can restore my in game settings to the normal given settings please tell me. And no, clicking restore settings does not work it just makes all the changes I have made to the settings go back to my "friends" impaired settings.

Thanks in advance. [slayer-pantheon-thumbs]