Suggestions are for reference only:

First of all, don't think about what career you want to' do', but what career you can do-many times there are not many choices. But in any case, unless the family is quite well-off, it is better than unemployment.

Secondly, changing careers is not simply quitting to find a job and moving in a similar circle, but jumping to a better and more suitable level. Therefore, before changing careers, you need a year or two to study and accumulate interpersonal relationships, so-called planning before moving.

finally, if you must change careers in the short term, you can consider sales, especially insurance sales. But the income is very unstable.