[pfortuny]

Edit: 0) Change your nick. Really. To something you like.

1) Taking a break, as lots of people have said, my help a lot. You get a much better view of yourself, your loved ones, your environment and what you have done than while engaged in 'making a living'. Even just a week off may help a lot.

2) Do not try to be 'the best' at anything. Really. Try just to enjoy what you do, and to do what you enjoy and are good at. Right now nothing feels like it because you are tired. Hence 1)

3) You need to start valueing what you do. Each time you make something which is good for you or for anyone, you need to 'celebrate' it inside and outside. You have done a lot of things but you have probably never enjoyed them and generated what you call 'feedback'. Really: the mere fact of getting up and taking a shower is enought to celebrate. Imagine finishing a project or starting a new one.

4) Let you loved ones make the valuations: this may be even better.

5) It is irrelevant that your ideas are not new. Your job and your contributions are.

But people have already said all this.