Be realistic about how long it is going to take you to actually get your applications out. I assume you haven't sent transcripts to AACOMAS yet, which is a process you should probably allow two weeks for. Once your transcripts are in, you'll need to be verified (usually another week and a half or so), and then sent out to schools (another week). On top of that,with very few exceptions schools are going to want a letter from a DO, which means you have to find one, shadow one, and allow him/her time to write that letter. You will also need to get your other letter writers to send copies of their letters to interfolio (or similar), since AACOMAS does not offer a letter service and you won't be able to send to DO schools from AMCAS. After that, you're going to have to wait for secondaries (varies from 1 to several weeks), and then get them back to the schools (hopefully immediately for you). Add all this time up, and absolute best case scenario I think you're looking at having your applications complete by Christmas time.
Christmas is super late, but some applicants do still find success applying around that time. I would carefully weigh the cost of this though, and think about the fact that you will be spending a good amount of money to apply at a disadvantage for a limited number of positions. Still, you do have a chance, and if it is worth the effort/time/money/frustration for you to have another shot at starting next fall then go for it. Just be realistic and make sure it is worth it to you.