Is it really possible ? I heard a youtuber making video on it by using bitmex.
I have seen someone who shared his profit on reddit or BTT he earned 10 BTC for just 11-20 minutes through trading. But his capital isn't only 1 BTC AFAIK it was around 10 BTC too.
is it really a good option to trade on bitmex using 100x leverage?
You can do it in every exchange as you wish but 100x leverage? risky.
Seeing the risk/reward ratio it looks tempting but the risk looks far more haunting
Yep that's risky and I don't advise it to do if you are not so sure of what you are doing. Do it with an acceptable amount.
Why not goal 100 BTC but with many source?