I bought a small Lincoln "hobby" level welder, watched the included video, and a number of videos on YouTube. Some really good ones out there.
I'll never be a professional welder, no delusions of becoming one, or the need to weld heavy metal. The 110V model was a better choice for me. Power available almost anywhere, could even use my Yamaha generator.
I put my welder in the back of my truck, took it over to a friend's shop, showed him what little I knew, had him welding in a matter of minutes.
I recently made a small, light use hitch for my garden tractor. This will be used to pull an 8x10 utility trailer from the back of my property, to the driveway, and vice versa. I'm too lazy to pull the trailer by hand that far, and my heavy truck would rut up the lawn. I didn't want to lose the use of the standard hitch, used with a pin type trailer, so this mounted above that one.
While it's far from the quality work of a pro, this IS functional, and will certainly do what I intended it to do. Bottom line, YouTube does have good videos that can teach you the basics.