HA! Mistakes, make them all the time, drop the scalpel point down into my foot on a regular occasion, glue the wrong part into the right hole or vice versa, not a problem, mop up the blood or have a mutter under my breath and when asked "Is everything alright????" I supress the agony and call out "Of course just dropped a part...."
During my 30 years living in a truck and roaming all over Europe and beyond, I thought that at the weekends when I would more than likely be sat on some industrial estate from Friday afternoon untill Monday morning I could do some modelling - not a chance.... And so I started on my stash, I bought kits, conversion kits, etch parts, paints, tools and books for reference.... I schemed and planned all these fantastic models I was going to build, the shows I would attend and the medals I would win....
My first model after I finally retired was the Accurate Armour Chieftain Mk.10, conversion kit for the Tamiya Chieftain... Knew nothing about how resin could warp, or how some parts were just a figment of the moulders imagination, blow holes in the resin parts, just at the important point where everyone could see it... But I persevered with the model and when finally finished I put it on a base and rushed of the the then MAFVA Nationals at Duxford, paraded myself through all the admiring crowds (10 people actually) placed it on the table and kept coming back to listen in to the remarks and comments, puffing my chest out even more, and the head even bigger... Imagine the let down when no one stopped to admire all that work, pass a comment except when the show was over an I picked it up to return home and somone said "Oh! is that yours.." and not even a crap comment.
I still have that Chieftain, still on its base and still in the display case, It sits with the Chieftain Bridgelayer which some on the forum can attest to that it was a love/hate relationship to get it built let alone finished, the launching gear and even the whole bridge had to be scratchbuilt, Models that I have started on this forum have vanished both into the mist of time and the trash bin...
So I say to you, we have all been there, we have all suffered, we must all be mentally ill to put ourselves through this agony when we could be a couch potato getting brain dead watching football on the one-eyed god..
And now you have kicked yourself in the family jewels, you put it behind you, and you start another project, and you have learned a valuable lesson, even the best of us screw it up, I have a drawer that contains my Gold, Silver, Bronze certificates and the same in medals from the nationals, and a debit in my banking history of all the mistakes and failures I have made and that is just the models...