Eyeshadow is actually kinda easy, it's the eyeliner that still fucks with me. The trick for basic eyeshadow is mostly to apply a good foundation and to use brighter highlight colors on the inside (at the corner of your eye that's next to the nose) and move to darker shades as you go up and outwards. This'll make the eye appear larger. The rest is mostly experimenting with color combinations and different brushes, which is honestly real fun if you have a few nice palettes. Blending can be a bit tricky, but that gets easier over time.