When to CS, or when to concentrate on map pressure?

My early game is usually pretty good, i can manage to get a kill or 2, be up a level, and be up in CS, but as soon as it's time to map pressure, my entire focus shifts to getting roam kills, and helping other lanes pressure turrets/objectives.

This results in me being down a stupid amount of CS, especially when other lanes start coming to mine, and taking the CS. So there is literally no where for me to get CS, when bot lane is pushed up, top lane is pushed, and the ADC starts pinging me away from my own CS lmao.

What do i do at that point? I don't want to tax my JG and take their camps. But at the same time i don't want to get spam pinged by my ADC telling me not to take my own CS v.v

So once mid game hits, should i just say fuck it about the CS? Like i said, early on i do fine, but mid-late game happens and 100% of my gold income comes from objectives/kills.

As a Mid laner, what do i do to keep my CS lead mid-late game? Or should i be willing to give it all to others xD.