You should not give out your steemit password - we have a posting key which is better for using on 3rd party apps. In fact I'm logged in with posting key all of the time as the worst that can happen is someone can post a blog or comment with my account.

Top right corner of your browser there is a menu - click it and it will take you to chat. It's been ages since I set mine up so I can't recall what I needed to do but someone has probably posted a blog so have a search for one if you're still having trouble.

I'm also on discord if that's easier.