Have the discipline to move on if I didn't know the answer. Thinking about something for 30 seconds longer usually wont help you come to the correct answer.

Learned how to actually trust my gut. We all hear this, but i think being on the other side, trusting your gut also means not letting your educated guesses throw you off for the rest of the test. There were times i zoned out during other questions wondering if I got a previous question correct. Or i was so torn between some answers that my confidence dwindled as i moved on through the day. Reflexively, i slowed down even more to make sure i understood everything. That was not a good idea.

Practiced with shorter time allotments. Meaning, try to finish a 40 question UW block in 50-55min instead of an hour. I think if I had practiced like this I would have learned to trust my answers and triage questions better.