Hello!
Welcome to the Forum!
Well, the Historical data is a headache at the beginning because all the brokers do not provide data. What you need to do is to collect it. Did you press the Home key to get the maximum out of it?
If you did, just leave the MetaTrader opened and it will collect data from your broker.
If you want you can use the data that comes in EA Studio. There you will have more bars but it will be from a different broker.