Photoshop isnt so much a drawing program, but an image editor.
(though, you can draw with it)
As such, its complex due to the complex operations it needs to do its job.
If you think PS is complex & unituitive, try the freeware equivalent 'The Gimp'.
Photoshop is incredible however. It only take a few video tutorials to start getting things down. Long ago I bought some from VTC (virtual training company). Theres like 14hrs of videos on a set of DVDs.. but really, it only took maybe an hours worth to get me rolling.
Long ago, I used to use Paint Shop Pro. & Painter 5. Painter using more natural brushes, producing oil-painting like effects. PSP more traditional of an MS paint style program, but much more advanced.
For mere line work, you could also use a vector based program... like Illustrator.
The biggest hurdle in Photoshop initially for me, was realizing that you cant do most things on the starting background layer. Its locked down. Create a new layer, and start your work on that.. leaving the background layer alone. Then all kinds of options will reveal themselves. But as said, a video introduction will help miles to get you going.