this is not exactly information you have provided already , there are so many traders in there who started trading as a part timer and still going good their performance.
yes this is a great way of making money , but of course first of all you have to make sure all inevitable parts of trading , otherwise the result of trading can be useless.
losses can make us crazy and emotional , so when bring losses by own mistake we the traders should remain cool , otherwise the result of trading can be useless.