It's hard to tell which one is the best because it depends on your preferences but I suggest checking Hitbtc, Whaleclub, and Bitmex.
Thank you, am going to have a look at them.
EDIT:- Looks like HitBTC no longer has the demo trading feature.
- Whaleclub has like 3 domains (
https://whaleclub.io,
http://www.whaleclub.org,
https://whaleclub.co) so I wasn't sure which one was the genuine one.
- Looks like am now left with the Bitmex option which isn't bad.
i think you should step up your game with trading with real money to make sure you also experience the emotions that can get through your strategy. demo trading is good but real life experience is different. try demo trading and real trading at the same time maybe, but of course only use money you're fine to lose.
I am going to set a 3-week target to know the feasibility of the strategy I am thinking of using so, I will definitely not make lax decisions. Emotions are not a big problem for me. I just want to be sure this thing will work.