Using little capital when you start trading can't be emphasize on more as the losses that traders get starts when they began trading. If you use a small capital, you would no lose so much money when you start trading that you'll be behind and trading to makeup for your losses.
Dummy trading sounds even better than small capital, you would not be losing anything more than time and some pages if you are doing it physically and not even that if you are doing on a excel sheet.
Emotions are common when you are having money at hand and you know that you can double it or lose it all. Hence the above needs to be practiced and emotional blunted as much as possible. If you cannot do that then trading is not for you - this needs to be realized quickly by the trader.
Also you dont need to trade everyday - in fact day trading is not even recommended for anyone who is not already a day trader.