Barakallahu feek shaykh please give me advice on making my concern the akhirah alone I strive to but of course I've been getting pain on my heart that comes and goes and some of my concern turns to this instead of what will happen on yawmul qiyamah jazakallah kheir shaykh

Ustadh AbdulAziz al-Haqqan

Keep doing goodness. Keep turning to Allah. Make lots of du'a and avoid that which is forbidden. Inshallah, this is all for the sake of Allah. When you do so, you're not desiring anything else.