Hello purchase.
I am not sure exactly what you mean by 'trying'.
I am going to assume you are referring to learning of some sort.
Learning to do something that I am not very interested in is exhausting. For example, I have undertaken a course in MS Office to make myself more attractive to potential employers. I can manage up to two hours of that before being exhausted and wanting to give up. When I am interested in a subject I can spend all day researching it.
Is it possible that your current endeavours are not focussed on what you would like to do, but what others would like you to do?
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'You seem very clever at explaining words, Sir,' said Alice. 'Would you kindly tell me the meaning of the poem called "Jabberwocky"?'