how does trading simulator works? should I try it before doing real trades? does it really improve my trading skills? If it does really help where should I try it
what you mean by trading simulator? If you mean trading bots then yes there some bot which help you in automatic trading. These are just software programs that use rules to recognize trends and automatically execute your trades trades.
Almost all exchanges have some kinds of bots. You set buying and selling rates and if price drops or rises to your set price transaction is initiated automatically.
However there are some specifically designed third party bots also for example Gekko, ZenBot adn CryptoTrader i heard the most. But use it very very carefully as your giving your powers to a software sudden flashes can crash your investments in seconds.
Also it would not be like you setup a bot and sleep and after few days you will be millionaire. You need a constant monitoring and you should remember all the rules you set.
Again trading is a complex business specially when do a day trading and it's always better do it yourself.