im trying to move my btc from coin.mx to cryptorush where i plan to trade for maza and mint, i clicked withdraw from coin.mx, selected a very small amount of btc(equal to about 15 cents) was told to put in an address, i gave the address i generated from crypto rush to deposit my btc, then clicked send, i am told on cryptorush 3 confirmations are required... im unsure of what that means. did i do this right? any help or explanation is appreciated.

if anyone knows of a guide or video that explains this stuff thoroughly i would really appreciate the recomendation