Welcome to the forum.
I'm so sorry for your loss. I can't imagine how hard it is for you.
Yes it is the darkest period for many of us, and the worst part is, no one knows when and how it will end.
But maybe you can think from another angle. Maybe you have more personal time than ever before. Maybe you have a better chance to think quietly about the future. Maybe you have important things you've always wanted to do, but life's trivialities distract you. Maybe you have a big hobby you've always wanted to develop, but it's been delayed for a long time. Maybe you can read some books and do more exercise......
Yes we all need social connections, we all need companion. Maybe you can try to reconnect with friends you haven't seen in a long time. Maybe you can join some online communities to interact with new friends (e.g. Clubhouse). Maybe you want to start looking for a new pet.
Try to ask yourself what you want and you might get some answers.
And you're not alone, many of us here are ready to listen and support.
Hope everything will become better and better.