All sports come with set backs from time to time and everyone will experience them at some point in their sporting career.
Depending on your chosen sport and how long you have been training will usually depend on the type of injuries you will get. As a masters track runner I usually see athletes get injured in the first couple of years after returning to the track. This usually occurs because people are to eager to improve too rapidly and usually overtrain or don’t apply the rules of progressive overload. If you survive the first couple of years injury free you can often get through 3-5 years of good solid training before some more of the overuse type injuries start to occur. This will test you. Your first instinct will be to just keep training and hope the injury goes away. You may be mid season and been training really well and have some good miles under your belt. At this stage you just don’t want to lose your training gains.
The tough question to ask yourself will be, is it better to have some time off now and get over the injury or to push on and run the risk of further injury. There is no magic answer to this question and I have been in this situation more times than I care to remember. I probably have a 70/30 record. 70% of the time I should have rested but pushed on and 30% of the time when I pushed on, I managed to get over the injury without too much disruption to my training. My advice here is to seek good medical advice early. A good sports physician is invaluable to make an assessment and provide you with an accurate diagnosis. Once you have a diagnosis you need to find a good sports medicine practitioner to work on your injury and help with your rehab program. The best advice a physio ever gave me was that they only see you for one hour per week the rest is up to you. You need to be disciplined with your rehab at home. Sometimes this can be dead boring with what appears to be innocuous exercises that don’t seem to be doing anything and you just can’t be bothered. You need to treat it like a training session and put in the time and effort. Small steps and patience will get you back to training. We all see so many people as being lucky, oh his/her injury wasn’t that bad, mine is much worse. However like most things in life the more effort we put in the luckier we get.