i want to start with 0 dollars

hello everyone my name is Mouad,
im new to this forum i heard about it from an influencer from my country
so basically i have a job but i cant depend on it forever i watch a lot of tutorials on youtube about dropshipping, print on demand, affiliate marketing, cpa...
but i dont know what is the best to start with no investment if anyone can help me with tips i will be grateful btw i know about ads and that stuff but it require money and as i mention i want to start with no investment WordPress ...