I just finished Welding 101 at a local community college. IMHO after this 16 week course which was 9:00 - 12:30 on Saturdays, this is the best thing you can do. As others have said, you need to burn some rods, period. There is no substitute for "seat time" with you and the welding machine and a bunch of electrodes and a bunch of scrap stock with which you can practice, practice, practice. I shudder to think of trying to learn what I learned by myself by just reading and looking and viewing videos.
Lest we forget a good instructor, and good machines. I'm not dissing the Lincoln tombstone welder, but IMHO again it's easier to learn on a good new machine under the watchful eye of an experienced teacher, so you can learn the basics and what a good welding machine "feels" like, and learn how the different electrode types handle, etc. This type of class is quality time, so to speak, and you will get much more out of an hour there than an hour fiddling with your machine and not knowing what you are doing right or wrong. Once you get this experience you can better judge what your tombstone is doing.
I feel like I just scratched the surface, but I can lay some decent beads and do some ugly but structurally sound welds after many hours of seat time. Will go for Welding 102 next, and graduate to GMAW (mig) and get some GTAW (tig) seat time as well. I know it's not easy to schedule a class, I waited many years to take my class (kids now in college) and it was worth the wait.
Rgds,
Allgonquin, first post after lurking quite a while
PS, for a beginner using DC Electrode Positive, 6013 is easier to weld than 6010, and 7018 welds nicely as well, but the arc is harder to start on 7018 as the flux covers the core every time you stop