What should a beginner learn to draw?

Always practice whenever you feel you have the confidence to draw, not when it's late at night when you are doing your homework and suddenly want to draw. Homework comes first. I'd say draw between 9-12 in the mornings ( this is good if you have free time and/or if you are on vacation from school or work ), when it is still light outside and the light is bright and shining to get you inspired to draw or paint. Practice drawing objects you are not very skilled at so you can master those techniques. Since you can't draw people precisely, practice drawing the shapes of people's heads and the flow of the hair and the direction of their body, don't right away start drawing an entire masterpiece of a human, work little by little, for example you can work on the shapes of the eyes for 2 weeks or until you master your eye drawings, then maybe you can go on to more challenging shapes and figures to master and that's how you could do better. To paint or draw " trippy" stuff, I'd say start on scratch paper and practice drawing or painting an hour a day or so. A beginner should learn to draw basic shapes and lines, practicing your base of drawing or painting. A beginner should also learn to draw shadows on shapes to show what direction the light is hitting on the masterpiece. Then as you get better with practice, draw even more challenging objects and soon you will become a good artist with skilled techniques and with practice!