I've been doing this since I was 5 (pretty much observing at that point) and I'm now 70, almost 71. I worked my entire career as a mechanic and then a mechanical engineering technician for the Federal Government. I'm pretty sure I've leaked at least a gallon of blood all over the projects I've done. So I suggest you skip all the training, etc. and just give a gallon of blood and get it over with.

My years as a mechanic taught me that the mechanic thing was great training but the technician thing was a better lifetime gig - I did 31 1/2 years in the Gov't.

Dan