Entry times off...?

Hey everybody, I'm new here, and relatively new to swimming as well (just joined a swim club/team this year, and I just turned 21). My first meet's coming up this weekend, and I'm excited/nervous for it, but my main question is regarding entry times for the meet... Here's what I signed up with: 100 free - 1:20 50 free - :40 50 *** - :44 I didn't realize that the meet's going to be in a meter pool, instead of the yard pool that I'm used to. The times were mostly estimates, and I tried it out a few days ago just to double check, and I got :36 for the 50 free, and :40 for the 50 ***, which should be fine in the meter pool, I think, but my 100 free was exactly 1:20 when I tried it in the yard pool, which comes out to be more like 1:30 in a meter pool (according to an online conversion thing)... So I'm just wondering - should I be really worried about that 100 free time? What should I do? I don't really know much about how meets work, but I don't want to be that one rude person ruining the heat for everybody else somehow. I feel like I'm gonna embarrass myself somehow, lol. Sorry if this has been answered before, I tried to find an answer with the search feature, but I didn't see anything really relevant.