I miss him a lot post breakup and even after staying busy all time I long for him a lot what to do?

It’s been 8 months since our breakup and I haven’t moved on, I stay busy also yet I miss him. He has moved on and is dating someone new also. please don’t respond harshly saying u also move on nd stuff cauz I obviously know that but it’s just not happening.

I miss him a lot post breakup and even after staying busy all time I long for him a lot what to do?
Post Opinion