I did the same thing years ago buying a TIG before a MIG. Never got great at it and when I bought a good MIG the TIG went into the corner to collect dust. Not that it does not do the job, just that it never did anything better than the MIG and was a collosal PITA to use by comparison.
That said, the first thing I was told to do was run beads on thick metal plate. Don't try to join anything until you have mastery of that little puddle of molten metal just off the tip of the tungsten.
Things you are learning
1-Recognize the bead. Seriously, I think a lot of people never see past the spark, smoke and flash events to actually see the tiny pool of molten metal known as "the bead". Once seen it is obvious.
2-Develop the muscle memory to keep the damn tungsten out of the pool. Yeah, good luck with that.
3-Control heat. As you go along, the metal plate will get hotter and you need to move and/or reduce the head in order to keep a constant heat affected zone ( blue area either side of weld). Just scribe a line and practice until you get a feel for it.
4-Learn to follow a line, straight or otherwise. Write your name or make your wife a Valentines heart. If you are old enough you probably recall calligraphy lessons in school trying to teach us to write in script. Script is the TIG of penmanship.
5-Trouble shoot. The bead should be clean and shiny. If not, why? Is holding for post-flow a reflex or something you still have to think about?
Once you got your fill of the above, I would start working with 1/8" plate and try all the conventional joint configurations of lap and butt-joint. You should be able to fusion weld these without filler. Eventually. I could never do a T joint without filler.
Pick one YouTube teacher and stick with him. Welding Tips and Tricks with Jodie is pretty good content and not just clickfodder.
In reality you are going to go out and start a puddle and try to dab some wire in there to stick two pieces of metal together, You will keep going even after you dipped the tip cause why stop even if the arc is wandering.
Did I mention that the Lincoln 180 TIG is now a dust collector in my shop?