Get to know the market and what it is about first before you learn how to trade. Learn the two popular types of broker: ECN and STP broker. After that, learn from Babypips forum where you can learn the basic theory of trading.
Welcome, learn the basic from babypips and Youtube. The best site for beginner. Practice with demo account. Keep practicing until you are able to minimize the lost.
Rather than trying one by one broker and own many accounts on different broker, why not you try to study them and read their review. The best broker is the broker that can give the good review from their traders.
I'll suggest to open an account with smaller leverage. If you are good with reducing the loss in trading, then you might raise your leverage up bit by bit. But try not to be too hasty to trade in huge leverage before you are able to minimize the lost by 0.8%
Never heard about this kind of chart. Can you give us the picture? Coz, the only chart I know is only bar chart, line chart and candle stick. The chart you mentioned seems new to me.
Just be careful when you pick on broker to trade. For some of them are not honest broker. Some might be scam, and some are honest. Check on the forums about their profile and business. The good broker is the broker that can answer the negative comments either from their traders or non.