Why are you still waiting? you ought to have started like yesterday! Matt is right too, Coinbase might be a bit clumsy to handle right now. First, they do not have plenty cryptos listed, besides they don't allow transactions from some countries. For instance, I'm in Nigeria, I have a coinbase account but I can't buy/sell. If you must use a trading platform, you may want to try Binance. Don't wait up!