UNECOM also has a three strikes and you're out policy. You get three tries for each board level. And you are not permitted to even start third year rotations unless you have a passing COMLEX score in hand. Not just taken the day before rotation starts, you must have a passing score reported. You must also pass level 2 (both parts) before graduation.
Also you need to look at each state's requirements a little more closely - Alaska has a "no more than five attempts for all steps combined". OP, you will never be allowed to practice in Alaska. Several other states have similar restrictive number of attempts. You will be restricted in where you can get a residency and where you can practice if you should manage to pass your boards.
I also agree that transferring into another institution will be difficult at best. That being said, you have nothing to lose by calling, visiting, begging, and pleading your case to every school you can get hold of. Be advised, most will tell you to pound sand. Your job here, should you pass your level 1 boards, will be to find one that would even look at you with your track history. This is something you won't find here on the forums, you will have to do some considerable investment of time, charm, and talk to get your answers. Your situation is not common, and it frankly does not look good.
OP good luck to you. You need to focus first on passing the exam. Your other option might be to start over at another school and repeat the first two years. You might actually have more luck with that path than with transferring in as a third year somewhere. In fact, you might start calling schools now to see if that might be a possibility. Truly, you sound like you have some significant lapses of basic knowledge needed to pass your level 1 boards and repeating the first two years might not be a bad idea.
Good judgment comes from experience, and a lot of that comes from bad judgment.