The best way to earn is through trading. But it is something that requires understanding of trends and have access to insider information. Manual traders are going to lose out. Probably need some kind of trading bots.
No one needs any bot for trading, anyone can do it manually if they learn the things needed in it, no one was expert from starting but they learnt the things and tried them and then they got experienced, before learning something we need to keep trying and slowly we grow.