Accidentally imported video files into timeline at 29.97 fps. Need to export 59.94 fps.

I am working on a video with 61 clips. The first one was 29.97 fps due to a user error in recording (accidentally used the wrong setting). Every subsequent one was 59.94 fps - the intended frame rate of the video. I ripple-deleted that first clip from my timeline and deleted the file from my project. I didn't realize that I edited the entire video with a 29.97 fps, and if I try to export it into a video at 59.94 fps the output is that frame rate, but it's effectively 2 identical frames in a row. The video is involves high speed motion and is clearly still 29.97 fps, and I can't tell from a) endless poking around the Premiere Pro, or b) search results here (probably user error). I'm using Windows 10 and the latest version of Creative Cloud.

I can't redo 3+ hours of work, plus render time. There has to be a simple solution here, but I can't find it. Please help. Thank you in advance!