Training around injuries.
If you have access to machines use them, they are perfect for training around injuries. You can still do half your chest on a machine same with shoulders etc.. For abs cross your arms across your cheast instead of behind your head, use a 10lb. plate to add resistance and to cut the number of reps down, always slow, 2-sec. up 2-sec. down, no pause at the bottom always keep tension on the muscle. If you can't get to the machines go to a medical supply store and ask for (Thera-bands I think thats what they're called) they are elastic strips about 12" wide and about 36" long in different colors with each color a different tension resistance, yellow is easy on up to black having more resistance. They are used by people that can't use free weights or machines or are not yet rehabed enough to use them. The ends can be tied together to from a band , step on it with your foot, hook it to a door knob, tie it to a bed post etc. Tiy this: sit in a chair step on the band with your foot to hold it down, run your arm with the injuried hand through to the elbow, hold your arm at 90 degrees down by your side like your a bird wing, shorten the band so as there is tension on your arm when it is down by your side, now raise your arm up and down like a wing to exercise the shoulder, remember all exercises are to be done SLOW and in perfect form. Hook the band to a bed post or door so it is behind you at shouolder level hook the band to your arm the same way but this time your arm is up at shoulder level in the press position and you want to pull your arm across your chest in an arcing motion like a fly to work the side of the chest with the injuried hand. I'm trying not to get long winded here. Be creative, you can in most cases work around injuries and disabilities.
What did the doctor and the therapist tell you?