Yuwa

Scalping is a technique by using you can get a good amount of profit and there are time frames for the scalping like you have to use the short time frame for the trading.

Demo account basic purpose is to test your skills on the virtual money instead of investing you real money and loss it, one you train enough on the demo account then you are good to go with the real money.

First thing is that both are the Trading platform and the second thing is that Crypto trading is only consist on crypto but forex include all the crypto, commodities and metals with currency pairs.

There is no short cut for anything and also you have to learn the basic of the forex before starting the trading because trading is not easy as it seems.