Need a skill to learn, & why i QUIT e-commerce

[vargna]

In the last 3 years i made good money with e-commerce, but when my products stopped selling i found out that I don't have any skill (craft) to sell, i noticed that e-commerce won't get me far, it's good as a side hustle but i shouldn't be dependent on it, so i temporary quit and now i want to learn a skill that could be my primary source of income in the future no matter what time it takes, here's what i considered and need your help to choose :
1- Web development
2- cyber security
3- video editing
4- feel free to suggest me anything please