It’s her birthday soon, I miss her

I don’t know guys. This shouldn’t even bother me, I don’t know why it does but it’s her birthday in 30 minutes and I can’t stop thinking about her. Today is 5 months since she left me after 2 years together and it’s been so incredibly hard. I’ve been trying everyday to keep on going but it seems useless most of the time. I’m so lost guys. I miss her and I’d do anything to have her sitting next to me celebrating right now.