FindingNemo I think some of the posters have been quite harsh, but I understand where they're coming from, because I - like many of them - had an uber-critical parent, and it does leave it's scars. I could cite many examples of when he pricked the balloon that was my pride or joy or excitement in something. Sometimes even as a joke (I went to quite an academic school, but wasn't very academic. ONCE in my time there I got a really good test result (in the 90%s), which was unheard of for me. Dad asked me - and he was joking - which ones I got wrong. I did know he was proud of the result [he was all smile-y. He def was proud]. Would it have killed the fucker to have just said "well done". No, my dad wouldn't have done that). Like many others, I grew up feeling like a constant disappointment (my genitalia was wrong for a start. Then I wasn't even sporty and nothing, literally nothing, I ever did was just good for it's own sake). I don't want to stick the boot in, because I think some PPs have been quite harsh, but please learn from this. A confident child will achieve more (I think) and I also think more willing to take risks, to learn from mistakes, etc. School will teach your child the education stuff. Life will teach them the knocks. I think our job as parents is to teach them resilience, and a major way we can do that is to boost their self-esteem.
When my DD was younger, I did what you did, because I was just so proud of her and thought she was so fantastic, I wanted her to be the best she could possibly be. It took a good friend saying to me "you made a 7 year old cry over HOMEWORK????" for me to start thinking about changing my ways; and then I read between the lines at some of the stuff school was hinting at ("It's HER homework" etc), and watched what some parents I admire did, and then I stopped trying to impose MY ideas and thoughts of how something should be, and paid attention to HER ideas and thoughts. And I don't give false praise - and I've ALWAYS said to DD I won't ever do that (I sometimes do!).
As a PP said, the more important thing is the "journey" not the result. The result doesn't matter too much - you can usually have another opportunity to do things better. Have they learnt/benefited/enjoyed/stretched themselves? These things matter.
Next time, suggest you don't look at the result (friend's toy was better). Look at the journey - WOW! You learned how to make THAT!!!!
Please do think about the constructive stuff people are saying, and hear how hurt so many people STILL are about things their parents said decades ago.