How to reduce parietal and occipital bones ?

[Blackpilled1027]

I mean, to get the behind chad skull like this :

 

[Blackpilled1027]

My occipital is way too oversized, if i train my back neck, would it be better ? maybe if i sleep in hard surface it can push it ?

 

[Blackpilled1027]

I mean my occiput looks like the right guy

 

[Blackpilled1027]

I think i need to get my neck bigger