Hey im 15 and im a enthusiastic boxer, i've been going for awhile now but certain things caused me 2 become angry and i stupidly punched a wall causing my metacarpel to snap ( greenstick brake so they cud manipulate it back to position ) and moving my knuckle backwards. i have just had it put in a full arm cast ( apparently to keep my arm and wrist straight for healing ). they said a minimun of 3 months b4 i can box n put my wrist under any real stress. but i cant sit ther for 3 months or more before i can train... is there any good training excercises i can do ( these can be any part of my body relevant to boxing ) without using my right arm ( which is what i use for writing ). thank you for taking the time to read my problem.