I know the loneliness strikes really hard. I know this young girl, she was 22 yrs old when she met me. She had a big mansion created by her ancestors. Due to COVID and old age, all of the people died. She is left by her father and mother only. She takes care of cats. She found her purpose in taking care of her cats and her old parents. Her old parents aren't simple either. They keep quarelling amongst themselves. That keeps the atmosphere of the house very heavy. Not a very healthy environment to prosper. To distract herself, she has started a business of her own. She sells Pakistani dresses to Indian market at a great price, all this while she was doing her graduation studies.
Why I had to share this story is that worldover a lot of people are facing this problem, but how they deal with it makes the magic work. You can be alone but you can build an ecosystem of your own from scratch, an ecosystem of like minded people with whom you can enjoy life.
I've been very popular in online space but I cut off from them and I'm now only connected to the friends that matter.
You don't have to ctb to get rid of this loneliness my dear friend.
However this is not a proLifer post. It was just an example of how someone else in another part of the world is handling a similar situation, so you can too, if you wish to

I leave the choice to you

choose what's the best for you in the long run
Talking about after life, no one has seen afterlife and people just tell based on what they have heard or what they have read or what they have been told.
May be after we die. *Poof* gone forever.
This soul is destroyed and a new soul takes birth and takes birth in the form of May be butterfly, lion, horse, bee, etc who knows