My investment growth journey

... That's a long story.
When COVID-19 hit, masks suddenly popped up. Then this stock also became unclear $Medtecs Intl(546.SG)$ . Then I wanted to buy some myself, and after being introduced by a friend, I came into contact with Moomoo. I haven't made any money until now, and my losses are unclear.
I also learned not to follow suit blindly here. We need to read more economic news and do some research. Then there will be no heavy losses.