PMS Depression?

My period begins in about 4 days and I feel SO depressed. I get like this every month and it’s really putting me down. I don’t particularly know why I’m sad, it’s just an overwhelming feeling of sadness and anxiousness. I have to say, last month is was way worse to the point where I couldn’t actually eat for days. Does anyone have any words of wisdom as I’m really needing it right now? 😣