how are you not going to lose if you start investing. when everything is already going up and you hear others talking about cryptos! do the homework when there is blood and no one is interested, that's the time!

Hello everyone .I'm new and I lost about 200 usd in just 2 weeks . every coin or token I buy it fall down too quickly . once I bought bitcoin when it was on 94k and I sold when the price rised to 98k but again when the price dropped to 94.700 then I couldn't buy the same amount I sold when it was on 98k . please help and share your expérience . I would love to have your precious ideas . thank you