My advisor completely ignores me what should I do?
If your advisor has stopped funding you, it has already affected your position in the department.

You should consult with the graduate chair of your department and see what your options are. I’d like to say that there are solutions, but this is unfortunately very much a function of who has funding and is doing a project in an area you’re interested in pursuing. You may need to apply elsewhere, if you can’t find a solution at your school.