I couldn't made much profit from this position yesterday and I hate myself about it.
As you can see I had bought 11 btc on limit order with base rate of 228.83 and I placed short orders also of limit type on different rates.

1. Would trailing stop instead of limit order here made me better profit and how could I have achieved it.

2. Now price is $245 and say I set trailing stop sell order for $2 so does that mean my order will become active when price will fall to $243 and once its get active what will decide my profit price rise or price down and by how much price my order will be executed.

3. Same question like 2 but this time for trailing stop buy order.

I am missing a point here really and I need to understand that I can make profit even selling btc when I expect price to go low but then how can I make profit on short order by selling low, something doesn't make sense to me. Because I always thinks that I need to buy btc first beofre I can sell them and make profit when price is high, this whole idea of shorting when you got no existing long orders doesn't make sense to me.

I always understand simple rule you buy at low and sell at high, then why some people suggest to add a trailing stop sell order and gain when price goes down.