I would encourage you to distance yourself from the limiting thought that the Tarot can only be used to read the future. Instead, realize that you can use it to shape the future.
In order to improve the accuracy and clarity of your views of the future, I suggest this method. Visualize a future time when your goal has been achieved. Make a pact with yourself that, in the future, when you have achieved this particular goal, that you will formulate the thoughts about how long, what resources, what skills, and what events would be useful, advantageous, to know in the present. Of course, when you do succeed, carry thorough with your pact. Transmit to the past what would be useful to know.