Season 1 - In order
Season 2 - In order
2 ways to make sure you're watching the correct episode:
1. Look at the episodes showing 90-100% completion that you watched backwards. Count how many were watched, and watch the next episode that many from the beginning instead of the end. For example, if you see that the last 6 episodes were watched while it was in reverse order, count 6 from the start and watch Episode 7.
2. If you really want to make sure you watch the right episode, open the episode before the episode you think you're on (6 in the previous example). Scroll through the episode and make sure it looks familiar as the last thing you watched. Then, when you get to the end credits, look for some unique extras from that particular episode. In our example of checking Episode 6 we'll use "Rockstar - Steve Lund," "Dominatrix - Nahanni Johnstone," and "Old Man - Kenneth Wickes." Now check that those 3 are listed in the full cast and crew listing on IMDB. If they match up you should be good to go - it's very unlikely the same extras would be together in another episode.
And yes, we checked them all to make sure there wasn't something out of order as well as backwards.