I left out these other sentences. Thank you very much, Writeacher.
1) If I'm lucky, I'll work at a passion and at the same time at a career.
I think that a good job is a job that you love and that permits (?) you to do the things you are keen on.
2) I have the ambition of becoming a writer.
If I don't find a good job, I'll probably work at a job and partly at a career.
3) If you work only at a career, you have to spend the majority of your time on it and I don't agree on that.
I will (better would like to) have a family and children and I will want (would like to) pass (better spend) a lot of time with them.
4) My job will be only a part of my life, only the way to do something for other people and get some money.
5) A thing is sure (a thing for sure?): I'll try to work in the best possible way. (best way as possible)
6) When I will work,I will probably work at a mixture of passion and career.
1) If I'm lucky, I'll work at a passion and, at the same time, a career.
I think that a good job is one that you love and that permits you to do the things you are keen on.
2) I have the ambition to become a writer.
If I don't find a good job, I'll probably work at a job and partly at a career. <~~I don't understand what that means.
3) If you work only at a career, you have to spend the majority of your time on it, and I don't agree on that. <~~The underlined part doesn't make sense -- "I don't agree" with what??
I would like to have a family and spend a lot of time with them. ("family" almost always includes children!!)
4) My job will be only part of my life: simply a way to do something for other people and earn some money.
5) One thing's for sure: I'll try to work in the best possible way.
6) When I work, I will probably work at a mixture of passion and career.
Here are the corrected sentences:
1) If I'm lucky, I'll work at a passion and at the same time have a career. I believe that a good job is one that you love and that allows you to pursue your interests.
2) I have the ambition of becoming a writer. If I don't find a good job, I'll probably work a regular job and partially pursue my writing career.
3) If you focus solely on your career, you have to dedicate most of your time to it, and I don't agree with that. I would like to have a family and children, and I want to spend a lot of time with them.
4) My job will only be a part of my life, merely a way to contribute to society and earn a living.
5) One thing is for sure: I will strive to work in the best possible way.
6) When I work, I will probably combine my passion and career.