[Solved] Help with glass object?

Hello

Usually I don't create glass objects, so I'm kind of lost.

I've seen a few posts of people with the same problem, but I couldn't fix it.

I tried following this tutorial, but I got lost around step 4 XD

I also tried Autosmooth but nothing changed.

If anyone can give me some help I'll be very thankful

ps: oh, nevermind. The autosmooth works if you're using 2.76 Blender version or up. Thanks anyway