You didn't tell us about the duration and intensity at which you're training to consider that you might be over training.

If you train too hard, you end up hurting yourself in the long run and you wind up further back than before you start. Part of being an educated athlete means understanding (your body) proper rest and avoiding over-training.

Take a couple weeks off the bike, dismantle it. Focus on:

- Proper nutrition, no weird diets
- Proper sleep & sleep schedule
- Make sure you have proper clothing/form pro-bike fit (don't want to train incorrectly)
- Use proper support (knee brace, ankle brace, tape, etc.)
- Personal well-being and mental health

Don't want to dismantle the bike? Try light spin sessions for 30 minutes a day at 30% intensity or gentle cycling through a scenic route without going over 50%.

Exercising should make you happy. If it's not, then what's the point?