yes its a good source but the result we get from demo account actually not works when trading in a real account.
I understand that trading exotic currency pairs offer a riskier approach to profit in the forex market as they are less liquid and highly volatile. However, trading exotic pairs can be highly profitable if you understand how to deal with a volatile market. The most volatile currency pairs offer enticing prospects for profit because their price movements can be more dramatic than less volatile pairs.
They have low liquidity and high volatility. Other than that, they have high spreads. Some traders do trade with exotic pairs and trade them with high leverage to benefit from the volatility but it can backfire.
Exotic pairs have high volatility. This may lead you into false breakouts or whipsaws that are very costly to trading accounts. Beginners should focus on trading major pairs to hone their skills. Once they are profitable in this field, they move up to exotics.