Whatever you do always use 0.01 lot size for now until you are consistently making profits. Best time to trade is usually during market open hours i.e. London open, New York open, synchronize with your local time.
Another nice time to trade is after a major news release, you should keep your targets very small, 10 - 25 pips per trade. This is because I want you to take advantage of the high volatility during these times and you exit your trade as soon as possible.
Pick only one PAIR and follow up the fundamentals relevant to the two economies. This method should help you determine the direction in the long run e.g. the current Brexit debacle has kept GBPUSD in a dominant downtrend because of weak economic numbers for GBP.
You can make it.