I Have Entry L Level MMD Am Not In A Union Or School. How Can Get Job On A Ship?

First and foremost aspect that you should keep in mind is that no degree can fetch you a job; it is your attitude towards your work and life that can take you to the higher level in your life and profession.
       
If you are talking about a job on a ship, there are certainly some jobs that are suitable for you. What you will have to do is to upload your profile on any website that is in the business of providing jobs. There are some other options also with the help of which you can get a job on a ship. You should go to any placement agency and give them the details of your profile along with the abilities that you think can take you to the higher level.
     
If you follow the abovementioned steps, you will certainly be able to find a job on a ship. Even if initially you find that the job is not what you wanted, you should join it, as it will give you a chance to be on a ship and the people on the ship will come to know about your abilities and you will be able to get closer to your dream.