New opening word gave me nothing.
Guess 2 was looking for vowels, and checking for T and R as consonants. I got a bit of help, but with E still in play there were lots of options. At this point I decided that going for consonants and pinning down the location of the I would be more productive than testing for E.
Guess 3 gave me some traction. Not only did I get the I in position 2, but I ruled out H from position 5. And, I also needed to remember that E could be lurking. Looking at remaining possibilities not including an E, I couldn't get anywhere putting H in position 1 or 3 whilst T was in position 4 or 5. So, I considered xIxHT, which led me to xIGHT. A lot of words fit that pattern: BIGHT, FIGHT, NIGHT, WIGHT, and MIGHT were all in play. Since I don't know for sure that xIGHT is correct, I decided to try one of those words to check the xIGHT root. If that didn't work, I would have needed to start thinking options involving an E, and with only two remaining guesses, there was a good chance I would have failed to solve in six.
Among the xIGHT possibilities, I thought that M and N would be the most useful consonants for future guesses in case xIGHT was wrong. I went with NIGHT.
In retrospect, IRATE would have been a better guess 2, as testing for E was more valuable than testing for D. I probably wouldn't have reached an answer in fewer guesses, but it would have made guess 4 much less of a stab.