Do you have a pet? A dog or cat are so lovely to cuddle when you are feeling down.
I do hope you will be able to drag yourself out of the house over the weeken to go for a walk in a nearby park, or the countryside. Spring is such ablovely time of year, the blossoms and flowers can hardly fail to lift your spirits. If you sit on a park bench sooner or later someone may pass by and say hello. Perhaps you could treat yourself to a bunch of lilies or stocks that will perfume your home.
It would be as well to consult your doctor too - a few weeks course of tablets may be all you need to help to pull you out of it, and give you energy to take yourself in hand by joining one or two groups - something sporty like walking, swimming, dancing, yoga, pilates is good for your body, and mabe the WI, a singing or art or book group for your mind. Volunteers are always needed for new mums, housebound people of all ages, the blind, homeless, food banks, and so on. Getting involved can help to make you feel good and help you to meet people and make new friends.