Your salary will never be sufficient to cater for all your needs and requirements. You can complement the salary you earn from your employment by online copy writing, article marketing and academic writing or in any other way of freelance writing and marketing.
People are making a lot of money by doing this work part time. You must apply because it is an employment like any other.
The clients who offer these jobs need quality. You have to be creative in order to do this job effectively. It requires skills some of which you may not have been formally taught in class.