This seems quite displaced , getting it operated will help you more than keeping a brace for months with not properly aligned clavicle

Surgery for better outcome and improved results

I would suggest surgery because you are a young man.

Better to fix with plate

Non surgical can be tried specially for a non dominant hand Take an xray after the sling application And after a week

Better to fix with plate

It will unite in brace in most patients but will be malunited. If u are willing for bump on the shoulder. U can go for brace

At this age you should go for surgery

Displaced Lateral one third fracture clavicle should be treated with surgery unless patient is not medically fit for surgery …..

If you are doing a desk job. Then go for non-surgical treatment for 4-6 weeks or till you get rid of the major pain. They do heal 99% if you are healthy, non-smoker and non-alcoholic... If you want an early return to work or game..then go for surgeries.. one to put a plate and the other to remove it ..with the risk of anaesthesia, surgery and possible infection.

Follow any one doctor Don't mix up