4 months and still struggling

I broke up with my girlfriend 3/4 months ago and being someone with severe anxiety, moving on has been difficult, I have found little comfort in no contact which I have been doing for nearly 2 months.

She seems to be fine, making a new insta priv, going out from the sounds of it and more. I tried reaching out a while ago with a long voice message wanting help as she only knew my pain, but her response was shallow and heartless leaving me in more pain and more questions wanting to be asked.

Even though I have found someone new recently which Im enjoying a lot, I have this lingering problem of the past and can’t seem to forget about her.

Does anyone have any tips?