You described my feelings perfectly about knowing people care and love you but still feeling utterly alone. That's a staple of depression and it's often very frustrating, and isolating. I feel guilty alot because of it. It's entirely normal, so you're not alone in that. Is there anyway you can spend more time with your family and friends that you know love you? Or even talk to them, ask them to call you once a day or whatever and express their care? I know it sounds cheesy but sometimes it helps to even get a text a day saying 'hey i love you'