Fracture in right hand shoulder. Needed?

2weeks ago i fell down n had injury in my rt hand shoulder.i am 26yr old female, working in a company. My doctor after doing xray told that there is a crack in my shoulder bone. After 2weeks when i was unable to lift my hand upwards,my doctor thought there can be muscle tearing & suggested me to do MRI scan. Today i got my mri report - it says "undisplaced fracture of greater tuberosity of proximal humerus is noted along the insertion of distel supraspinatus tendon.there is associate marrow edema/contusions noted in the greater tuberosity appearing hyperintense in pd images.mild increased signal intensity is also noted involving distal supraspinatus tendon with mild heterogeneous signal in the overlying subacromial/ subdeltoid bursa" How serious is the injury? What is the next step to be taken? How much time does it takes to heal these kind of fractures? As it is my right hand and i am a working(laptop)? How much rest is needed? Or is it ok to work.