Your friend has advised you very well, for that I thank your friend. Bitcoin has gained a lot of popularity in the present time, it is because of your friend that you came to know about Bitcoin easily. Your friend gave you better advice, which led you to join the Bitcoin Talk Forum. You should study regularly to gain knowledge from bitcoin talk forums. If you don't understand something then of course you ask here or you ask your local community. OP you said buy coins this week, I suggest you definitely buy bitcoins. When you buy bitcoins you buy by following the DCA method. You invest in Bitcoin and hold it for a long time. Hope you can earn a lot of profit.