can't we trade with just $1, because the minimum trade is $5

A friend of mine who wants to start crypto trading said she had $1 in her account and would like to start with it. She wants to reach $100 by scalping ... It's possible to reach that target once tried that and within 3 days had reached $110 though there are many risks involved ...Have you ever tried going on such a challenge did you reach your target or lost all the money