If you are using images from somebody else, then you must state that this is what you are doing.

If you have not already done so, you should head to the newcomers community and complete the newcomer achievement programme. Not only will you earn money through upvotes, you will learn about content etiquette;

Since the Steem Blockchain is rewarding your post by producing original content that is from your brain, you are recommended to give citation or source to any of your content that consists of others' works.

I am sympathetic of your personal situation as with many other users on this platform also going through a difficult time at the moment. If you review the achievements highlighted above, particularly achievement 3 then there is certainly no reason why you can't continue to have a job and be successful here.