Risk management is normally the issue in this circumstance. If you've got a good trading strategy and a good chance of winning in trades (>50% normally but preferably >70%) then that's what it'll be.

Most people seem to mitigate this by offering signals either directly to someone or on a group.

If you want to trade, don't risk more than 5% of your portfolio on a trade, and try not to make hops that can scare you (eg set up a trade late at night if you've just deposited so you won't check how it's doing while you're asleep).