First off, I’m so sorry for your loss. Second, all is not lost, but you will have to do A LOT of legwork and there will be no guarantee of success.
Personally, I had mediocre to crappy board scores, I only interviewed at four programs, two of which were required by their policies to interview me, and ended up matching at a program who cared more about the rest of the application than scores (matched in the AOA match). Their APD specifically told me that they mostly only care whether someone passed the boards rather than the scores themselves, as that’s a good indicator that someone will pass the boards during residency. This was a very stressful interview/match season for me, and a lot of things happened for me by luck and/or me reaching out to all the programs I could.
Just wondering, did you do USMLE at all? A high score in that despite a low COMLEX will help with some programs. Also, improving on Step/Level 2 will help your chances as well. Finally, make sure you do some EM audition rotations at hospitals with an EM residency. These are the only places you can get a SLOE from, at least 2 of which are required for matching at most EM programs. These letters aren’t just vanity exercises; make a good impression, and they will mark it in the letter. I had specific things from one of my auditions brought up in an interview; because, the attendings were impressed enough to note it in my SLOE.
Sorry for the long post. TL/DR, your dreams are possible, just very difficult from this point. Feel free to PM me if you want to talk more about it.