I think a trader must trade with a partner and the strategy he likes the most. As a beginner, I want to trade only with the EUR / USD pair and a simple trading strategy. Time-frame H1 is also my favorite time frame. and I like to trade in the main pair because the spread of the pair is very lacking and the pair's volatility is high so try to trade on the pair on the first demo account and when you get it you can try to trade on a real account to generate real profits.