I've never believed in sport psychology (Just be strong and focused, what's so hard? haha) But this spoke to me. Ok, I know it says whitewater, but it applies.

Jonathan Males | Performance1 -
Injury damages your self-esteem, not just your body
A serious injury does more than hurt your body – it can also challenge your sense of identity and self-esteem. Anyone who is talented, passionate about their sport and devotes serious time and effort will feel pride in their achievements and skill. Kayaking becomes more than something you do, it becomes who you are. This merging of identity with activity is more prevalent with younger paddlers. They often have more time to devote to paddling and they have had less time on the planet to diversify and develop different skills and aspects of their identity.
So whilst older paddlers might be more prone to getting hurt because of their ageing, battered bodies, the psychological impact may be less because they have a non-paddling career and family commitments that contribute to their sense of identity. For younger paddlers it’s important to develop a sense of perspective, especially about rehabilitation time spent off the water. This can easily feel like wasted time and create frustration – which isn’t good for confidence. Instead, see it as a positive opportunity to spend time with people and do things you wouldn’t normally do. Like learning Spanish in preparation for your trip to Chile, or visiting your family who haven’t seen you for the last six months.

Rebuild your confidence Confidence is built up over time from three sources. After an accident or injury you need to systematically go back over all these areas to re-build your confidence.
Internal: Remind why you love paddling so much, think about the great times you’ve had and your favourite trips. If you can, watch video of yourself paddling well. Replace your inner critic with an inner coach if you find that you’re still beating yourself up. Don’t tell yourself anything you wouldn’t want to hear from someone else. Visualise yourself paddling well, and when you’re ready, re-play the incident where you were hurt or messed up, but in your imagination nail the lines and paddle the feature successfully.
Relationships: Hang out with people you like and who like you. And not just your paddling buddies, you can get strength and affirmation from friends and family. The important thing is to spend time with people who love and appreciate you for who your are – not just your paddling!
Environment: Even if you can’t paddle, spend time you doing good things outdoors. We are so fortunate as paddlers to spend time on beautiful rivers in fantastic parts of the world. It’s important to stay connected with this, even if it means walking rather than paddling. Once you start paddling again, build up gradually. You don’t need to go right back to the beginning, but don’t expect to start where you left off either. Make sure that you paddle with people you like and feel confident with, and focus on enjoying the whole experience – not just the stout stuff.

Nice quote, ben: Gotta train with the best or die like the rest