Feeling about my current job

Hi, Tom
How are you?
- Thank you but I'm not so fine
Excuse me, can you tell me?
- My job, I feel that I'm not suited with my current job
Tom, why, I think you like it?
- Oh no, my current job is just a job, not a career
But why, did you have some problems in your job?
- I see that I can finish my works well but I havn't any passion in it, can't find any joy
- I think I won't be successful in this field, I need a change
- My manager don't evaluate my ability accurately and I see that she is right, at least in the current job.
Tom, cool down! You are having a good job, many people want to have it but not can't
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