I thinks this is the four things must do to be successfull-
1. The trader have to active 75% in a day
2. Always read the website of the altcoin you want to buy.
3. Everday visit their social media page.
4. And also knowing the market condition is more important.
Agree, because if you don't have a lot of free time then you won't be able to have a lot of time to monitor, analyze, and so on.
because in daytrade you look for opportunities in your monitor time, and that takes all day