Bone erosion and psoriatic arthritis

[reham abdullah]

I am a PsA patient from 8 years ago, before 3 months there is pain and limited ROM, so when I went to rheumatologist he confirmed that there is development of distal clavicle bone erosion “ x-ray showed” , and ask for MRI for more investigations,

so the Q what will i do? Iam confusing right now. 
ANd my Rt knee start develops the same symptoms that I feel on my shoulder. 
Am I psychologically terrified?