What type of trading are you most using?
I'm just buying coins which I'm interested and hold them until it reaches my target price. This is called an investing.
I am so confuse on what trading type will I use to trade for newbie like me.
As a newbie better don't jump directly on to margin trading. You might have heard that you can make a lot of money from margin trading with less investment but you also can lose all your money even faster if your pick doesn't perform well. So you should first start with buying coins and hold them and monitor market how it moves because crypto market behaves quite differently from share market. In a day it can move up or down a lot.