Firstly, nobody should be trading with a $100 account, as explained here -
Secondly, no retail forex trader should ever use leverage of more than 1:30 (or 1:50 in America) because if their broker offers higher leverage than that, it proves that their account isn’t properly regulated.
These posts explain why, in more detail -
The two important things to understand are -
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lack of high leverage ISN’T the reason for anyone’s failure to trade profitably (though unfortunately thousands of unprofitable traders like to imagine, very wrongly, that that’s what holding them back)
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the purpose of trading with a very small account (the generally accepted sensible minimum is $250 to trade 0.01 lots, one microlot - though some people say $300) is to gain experience, not to make money. Very, very few retail forex traders ever get as far as making 5% per month, and that would be $12.50 per month with a $250 account
These two realities can’t be changed by using higher leverage: that adds risk, not income.