My suggestion is to have your collarbone pinned/plated to speed the healing.
I put up with 6 months delayed healing after #3 fracture on my right clavicle before having a Richwill pin placed. it healed in 3 weeks once stabilized! Had I had it pinned at #1 probably #2&3 might not have happened.
I had a 40 mm tek screw through my back tyre at 100kph on dusk. it was a " bring me my brown pants" moment! I managed to hold it up until about 10-15 kph until I ran off the road. The end of a shitty day's ride for me, having already busted my radiator in a low side slide on the APC 4 day. Luckily I didn't land on my busted foot the second time.
I feel your terror!