Brother Marine ,
I have found that one must first learn the alphabet ,from A to Z , as well the Numerals from one to ten ..., but keep trying to find You a person that already knows his very well , and ask him if he would help You , by learning to right important , or emergency type , or even code type messeges together .. Let the mentor do all he can to set You up with practiceing S.O.S. type messages ..., some where You should be able if You are still in service to practice on a machine that types down the messages that You write , this way You can count Your mistakes , as well learn more easily that which you may need more practices / or practiceing at .. WM .. PS .. You may try to get someone in with you to learn ,(if you can find someone that is interested in learning ., For it is a worth while option that may save lives , as well , get You out of a tight place ..., Keep looking ., some old timer may be just what You need if You can not get a buddy too) it is not to late in the game to know this trade .. Most likey it will take some one that has not done morse code in a while to pick up your signal to be the one that comes to You , or all of Yours rescue) .. do not give up ..
I do not care how slow you may be at this , one word at a time from a letter coded alfabet sheet may be all it takes to start or be of help ..Lamenate it so it does not get wet .. also learn to write it down from those that practice with You ..., then see if You can make out what was coded to You , even if you have to ask them to slow down ..
I never learned the whole alfabet in morse code but , trying to just write it down for someone else may be , or Your code paper , may be what saves You , as well all with You .. You are a Soider ...Stan up to your Superiors and demand , what they may do to get You some Help .. If needed , or in time , they may just do what You have asked , and get You the training You need for the benifit that maybe to thier help as well .. Be Strong !! continue to learn even if they won"t get You Help ..