every beginner must be afraid of loss in trading bitcoin.
do you have any suggestions or feedback on how to successfully trade bitcoin?
Trading needs lots of patience, experience, knowledge about the market, strategy.
out of all the above
LUCK is also an important factor

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In order to do bitcoin trading you need very big capital, these days you can see how bitcoin price varying. if you have the very good capital it is better to buy some bitcoins and trade or else it is better to trade with the alt coins (bitcoin really expensive these days).