Blackbird It is not that your friends do not want to help you, it is that you have to step halfway towards them so that they know what they can do that will make a difference. Don't wait for them to contact you. Ring someone and invite them for a meal or a coffee.
There are many organisations providing opportunities to leave the house and spend an afternoon or an evening doing something that you enjoy in pleasant company, that will fill your mind for a while and give you something else to focaus on. But they will not come to you, you have to search through evening class brochures and "What's on" lists, think back to the interests, hobbies and crafts that you used to enjoy and find out how you can pick them up again.
I used to do a lot of photography (back in the smelly darkroom days) At a neighbourhood fair soon after I lost my husband, I got talking to someone beside a display of entries to the photograph competition, and as a result I have joined the local camera club. At the first meeting I went to I knew nobody but at the next they seemed like old friends - and I found I had not lost my eye for a picture. Editing the shots digitally is a steep learning curve, quite different from wet darkroom techniques, but the brain exercise is good for me, and needs a lot of concentration, which prevents me dwelling too much on what I have lost.