I am so sorry.... This is hard shit .... I too crapped all over my sweet, dear, wonderful non-JW family for DECADES while I was a self-righteous, smarmy "true Christian" --- I lost my mom last year, and the loss of her is so exquisitely painful that some days I almost can't stand it or myself.
Regret and guilt are the way we "haunt" ourselves with their memory, and they are big terrible demons to contend with....
Yet continually kicking ourself is not healthy.... I try to remind myself that I thought I was being "faithful" and trying to do the "right" things, living a life "that was pleasing to Jehovah" .... and that I was in a f'ing CULT...!!!
Most of my memories of my dear mother are from CHILDHOOD, as I became a JW when I was around 20 and finally woke up nearly 30 years later....
... All those decades of never wishing her a happy Mother's Day, no Christmases , no birthdays.... She could never celebrate those things with my kids, her only grandchildren.
Oh gawd. This is very hard to come to terms with, I think it will be a wound on my heart always....
But some days the pain does lessen and is not so sharp and damning.... She loved me and my JW-self treated her (and all my non-JW family) like crap.... Regret, guilt and shame keep us tied to the past, stops us from moving forward.... It will be hard, but remembering this helps me treat all the dear people in my life with more love and compassion.
I try to remember the things my mom taught me, the words and phrases she used (I write down all my memories of her in a special journal...) and this helps somewhat.
Every day I still tell her in my heart how sorry I am and how much I miss her....
We live with the good parts and asshole parts of ourself.... Being a "spiritual" Jehovah's Witness is being a special kind of terrible, detached, disconnected asshole shithead.... (You know, I still don't really swear except when I start talking about being a JW!!) but remember, WE WERE MISLED, we were lied to... We were betrayed, and in turn, betrayed others.
I do understand and hear you... I feel this terrible pain and grief too.... and I'm sure that many other ex-JWs understand and feel this, too. You are not alone.
There will be sweet, wonderful, happy moments in your life again, but yes, there will always be this ache in your heart ... Let that pain help you not to be an asshole any more. Become "the best person of yourself" -- that phrase is from a motto from my grandchildren's school -- a Catholic school.
I have a friend who is into Bhuddism, she tells me that her belief is that we're all put here to learn something.....
I wish you peace ... and many condolences.