I've only given one talk but it was similar to this for me, although with a much smaller audience. I had a 30 minute slot and breezed through my slides in maybe

I've only given one talk but it was similar to this for me, although with a much smaller audience. I had a 30 minute slot and breezed through my slides in maybe 5 minutes with a lot of "um" and fidgeting. In my nervousness, I said the phrase "super easy" ~20 times in that 5 minute timespan. Luckily, people were genuinely interested in my topic and asked a lot of questions. I calmed down a lot when I had some crowd interaction and was able to make fun of myself with the "super easy" thing. If you ask me, I bombed. But when it was all over with I felt like I couldn't wait to do it again.