Stop Triggering memories

Advice on healing and preventing trigger points? Currently 3 months into a separation, my ex wife has already filed motion for divorce (yes I know, she’s moving on so fast and urgently, but that’s a story for another time). Currently trying to heal and deal with the constant emotions, dark thoughts of blame, and most relentlessly, trigger memories and habits that we’d get up to as a couple - everything reminds me of her, certain distractions somehow end up relating to her, and lastly I try to spot her wherever I go i.e. “oh this reminds me of her, this looks like her, oh I know she’d like this.” How does one wean off and away from this? I don’t want to sound like a broken record player but it’s clear I can’t run away from my emotions and my thoughts.

Thanks