OP, do not, do NOT go to the Caribbean. I know it sounds tempting, especially after taking this stupid test for a third time. I know you wanna get on with your life. As someone who utterly failed the MCAT, I know all too well the temptation of wanting to go Caribbean. You have to resist that.
You MCAT is really bad. My belief is, you either take it again (ACOM told me last week they had someone take the MCAT 7 times and got in), or you cut your losses and find something else.
As someone who also struggles with reading, I have some recommendations for you. There are a couple ways to move foreword with your life if medicine is still what you want, and you see yourself being a "doctor".
1) The best option, as others have mentioned, is podiatry school. If you still want that shot at being a surgeon, operating in the OR, wearing the white coat, and being called doctor, being a podiatrist seems like a good way to go. I have family who couldn't get into medical school who are now pods and they seem to have a pretty sweet work schedule. she is more conservative in treatment approach and doesn't do a whole lot of surgery, but as a pod, you can be as busy as you want, or have a much more relaxed schedule than many other surgeons in healthcare.
Podiatry is a legitimate aspiration. Don't feel like a lesser person for choosing to go that route. People really underestimate their feet until its too late, you can make a difference in the lives of others as a pod. No, you probably won't save a life (although ankle trauma is a thing), no you probably won't be preforming surgery on famous actors, and no, you will never be that prestigious brain surgeon that everyone at the next family wedding talks about, but you will make a good living (130k+) and you still get to be a "doctor"
2) Dentistry, Optometry, or Pharmacy. These are all doctorate programs that have much easier entrance exams, with a lot less reading and critical thinking. There are many pharm schools (good ones too) that don't even require the PCAT. Beware with these however, as saturation is starting to encroach these specialties.
3) Midlevel PA or NP.