Definitely learn all you can about what’s a good weld and what’s not.
Personally I think Tig and Stick are best types of welding for a hobbyist to learn because they are the most versatile.
MiG and Flux core are better when you are welding a lot of the same material all the time because the changeover for different materials is a lot more work.
Although I don't disagree now that I've dabbled with TIG it's more persnickety than I'd prefer for day to day use, if dealing only with stainless sure but out of position is still not fun... (my only TIG experience is scratch start DC with the Titanium 200, if I had an AC/DC machine with a pedal I would probably have a different opinion). Stick has it's place for sure definitely on heavy stuff... MIG is great for general welds where you don't want to deal with cleanup afterward but can deal with a little less penetration. Flux core is somewhat of an inbetween, you get all the cleanup of stick but with the convenience of a glue gun... I actually bought a discount Titanium 125 to use for a camp welder and we used it in camp a few weeks ago and it was great... my MIG bottle is about done and I had a quick welding project the other night and just plugged that in to save my gas for a specific project probably next weekend...
I have more welders than I'd like to admit (ok, 6 just at my house, another at my brothers, not including the torch set...), I'll use the best suited for the job or what I'm in the mood for, a couple weeks ago I had to use stick for a project because it was welding the inner support to the inside of a tractor air cleaner housing that was recessed about 6" so no way to get a MIG gun in there, had to bend the last 2" of rod to weld on the side and use 3 rods to just use the tip... Anything 1/4" or more I'll generally go with stick just for the penetration but if I could only pick one process for general use around the house and farm I'd probably pick flux core just takes cleanup between passes...
My interwebs are working better this morning but the guy I like to watch for welding tips is definitely weld.com, they have several to do/not to do type videos to show how things should and shouldn't work for those that are visual learners...
Oh, and best way to learn is practice, then practice some more, screw up, get frustrated, figure out what you did wrong then try again... A tip if you are going to stick weld my choice for a general use rod is 6011 for rough general use and 7018 for prettier stuff, supposedly 6013 is easier to use but has less penetration...
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