I strongly disagree, if you invest all your savings. Because in the forex business, a very big risk, even the potential loss is much greater than the potential profit. If you are determined to do it, maybe you could be so rich quick, but also all of a sudden you will be someone who does not have anything else.
I advise, invest as much as you are ready for the loss. If you are ready loss of 10%, then you simply deposit 10% of your savings.