Kudos for trying without studying and voiding. When you take it again the next time you will be prepared. You just have to plan a schedule, get the resources, and hit the library as if this was your full-time job. When you learn new facts, learn from your mistakes, and when you see progress, you will want to study harder and will be more focused. In either case, take some time off and start stronger. You have time so plan accordingly, but when you do start studying, it's important to stay focused.
This is how I would study and take it again if I have to:
-Plan to study for at least 2-3 months, every day, 6-8 hours, 3-4 verbal passages a day, 1 day off per week
-Buy AAMC bundle (about $240), do all the questions (but no Full length), including Qpacks, section bank ques, guide questions
-After each question, write in a book anything important related to it, something you didn't know, a formula, anything to come back to.
-Do AAMC FL 1, review, take notes, etc
-Start working on your weak areas from content review through any source you have, possibly TPR or Kaplan or Berkely
-Take the untimed AAMC FL, follow the note taking etc, work on weak areas again
-Do a final review on weak areas from aamc notes and the books, youtube, etc
-1 week before actual exam, take AAMC FL 2, review
-Do not study day before exam
-You can go over the Kaplan Quick sheets if you want, but memorizing the formulas will help
-If your score is not improving or is not where you want them to be then buy more FLs (either from NS or EK, don't do Kaplan or TPR FL).
-Try your best sleeping 6-8 hours day before
-Do your best on test day.
If you follow what I wrote here, there should be no reason for you to not get close to 500 or above.
Good luck!