What would be the best way to find out about mental health? i have signs of depression, anxiety, ptsd, ppd, as well as bipolar disorder symptoms. all of the above are causing issues within my life now?

The best way to deal with this is to have an evaluation by a mental health professional, eg psychiatrist or psychologist. The issues are all treatable .

Have a physical exam by a Dr. to know if you have a physical illness. If cleared consult with a Clinical Psychologist with expertise in multiple types of psychotherapy to help with ZOOM & a Psychiatrist for medication. Sleep is fundamental to good mental & physical health. If you are not sleeping well ask for a sleep study.