https://archive.palanq.win/wsr/thread/1416083/You've been repeatedly told how to draw and what guides can be followed.
Perhaps you should save yourself and us some trouble: when you continue to open these threads in the future, ask about your motivation problem, instead of asking about drawing. It attracts the wrong crowd and gives the wrong first impression.
By the way, here's something I drew some weeks ago. I'm not at all creative (at drawing), have little or no "artistic knowledge", and I didn't do any math for this. So stop whining about these things: they are not required for drawing. All I did was copy some stuff while altering it slightly. This got three replies from different anons, two or more were even compliments.
If you draw and study art for a week you can surely do better than this.