Insomnia, lack of appetite

Hello, people,
I've recently been dumped by my long-time boyfriend. I suffer from anxiety. I believe I am depressed and insomniac, too. I haven't been able to eat properly and I barely sleep. I think this is taking a tole on me. I've cried and suffered so much. I miss him and love him deeply, but I cannot seem to pick myself up. I'm devastated. But I need help. I've lost weight and I barely rest. 
Any advice on sleeping aid? And, also, helpful tips for dealing with anxiety, panic attacks, and depression. 
Any and all help is appreciated!