cool! thnx guys! im doing my homework now i got a good knowledge from the sites you gave,.. ill take your tips for doing altcoin trading than bitcoin,... 
thnx again and more power
thnx again and more power You can try trading bitcoin but the difference is trying to short bitcoin means you need to wait for price to change in your favour with just one coin however if you trade alts then you have many more coins to choose from so you can trade much more each day. Plus trading bitcoin you probably need more money.
better do trade altcoins. because if do the trade bitcoin, bitcoin prices are currently very high and quite risky for a beginner trader.