Just make sure that, in your thoughts, the act of studying is clearly separated from whether you think of yourself as "good" or "bad". Do not evaluate yourself based on what marks you think you will get. Do not start feeling that your parents or teachers will love you or approve of you only if you do well in tests. They are just as happy with your best effort. Believe, this some of the workshops we plan to take with them will tell them so!
Also, tell yourself very clearly that there is no expectation at all that you should like the task at hand, i.e. studying. Just hang in there and stick to it, because it is one way to make it to a good career and ultimately, an independent life!
Life isn't about finding yourself. Life is about creating yourself. - George Bernard Shaw