Professional trader know the methodology of trading. Most skillful trader didn't trade with emotion they have their predetermined exist plan and have good trading plans.
There are 2 kind of tradings. Online which is the most risky one and offline in which a trader usually makes profit.
Here is an example: Online you are betting on a pair, on a single product price like commodities for the price to go up or down. In such environment usually most of the people lose.
Offline, what I do with my local currency in my country. My local currency is EUR, and now is very weak compared to the USD. I don't do anything in such scenario. When the Euro is strong I buy USD with it and then wait for a time like this in order to buy the Euro back when dollar is stronger, resulting in increasing in the number of my Euros.
I suggest to you and every one else physical trading over online trading.
as it was said, you can do what you are explaining online too. and it has nothing to do with being offline or online for making successful trades.
besides it seems to me like when you are using the term "betting on a pair" it shows you are not so familiar with trading. because trading has nothing to do with making a bet or buying something and profit if you are lucky and price of it goes up.
instead you buy something (currency, commodity,....) when you analyze the market and make the conclusion based on observation that price is at its lowest and also when you do a risk assessment about the profit and loss that is possible to happen and then buy at the bottom to sell when the price went up.
although this is a simple explanation but it is the whole idea of it which has nothing to do with betting and hoping price goes up.
