history: One time I had to give a presentation in order to get my master's degree. It was very stressful but I passed and was able to graduate I had to do a research project and present it to my professors to graduate. Thankfully I passed!
current: You must have worked hard for that! I'm sure it's great and you'll pass with a flying color!
next: I worked many long hours. It was stressful but I'm happy to have done well