Can any one help and tell me what is going when you can buy rise or fall on BTC and where i can do this? You can set a time limit as well.
Your sentence is unclear. Are you talking about future trading or spot trading? You can do it in Binance exchange. But if you are a beginner, I will advice you to do practice first. Go to google, search a website that do cryptocurrency trading simulation. Make a demo account and start to practice trading.
I think he just a beginner that's why he hasn't much idea on this. As much i guess he just wanna buy btc and sell it on high price. I think he might need to learn first trading before invest that's why he needs a demo account on any platform . There are many things concern on trading. So he needs to learn before invest on btc if wanna get a good profit.