Login issues and password reset

I’ve had major issues since Friday (1/7) when trying to move WordPress from my site, revtucher.com/wordpress to revtucher.com. In essence, everything broke. After creating a new database and reinstalling WordPress fresh, I was able to log in and have access to the Dashboard. Once I imported my original database, everything broke again. I tried to reset password, but I get the following message after clicking on the link provided in the password reset email: Sorry, that key does not appear to be valid.

My site loads now, but with no theme, just plain text links. I can’t do anything to change that because I can’t log in to the Dashboard.

I guess I need the following help:

1. Ability to log into the Dashboard
2. Change password since my current credentials don’t seem to do anything, nor does requesting a password change.