Can any one help and tell me what is going when you can buy rise or fall on BTC
Thanks in anticipation of your help.
But at low and sell at high, this is a common and genuine strategy but very effective.
where i can do this?
Use reputable exchanges like Binance.
You can set a time limit as well.
No definite time to do this and that also depends on you.
But I would suggest educating yourselves first, don't rush. Trading is tough and never underestimate it.