Answer:
That depends.
Explanation:
Context clues are when you look at information stated in a sentence and you use that information to define a word that you don't know the meaning to.
For example: "Johnny unlocked the door in his roadster and drove to work." You probably don't know what "roadster" means. Well, you can use the context clues: "unlocked the door" and "drove." These are words usually associated with "car," so roadster means car.
If you can use this method, context clues, on your own, then you would be confident in using context clues. If not, then you aren't confident in using context clues. ("Confident" means that you believe that you are good at doing something, and you trust yourself to do that thing well, like you are confident at playing tennis.)