I am 75 and feel more and more lonely

I am already 75 and I find that I am very lonely. Fortunately I have a good connection with my sister and brother but.... every morning when I wake up I think: now what? Why should I get out of bed?

Sometimes I don't speak to anybody for days. The things I liked to do I cannot do anymore because I am getting old; I don't have energy anymore. Around me it has become silent.

Most of my friends have passed away by now. I was there for them, but who is there for me now? I feel more and more alone.