prints are not sticking to the bed, i had recently gotten an new bed for my printer along with some other things, i had been using hairspray for it to stick but stopped since i got the new bed, i have leveled it found that hot bed is sunken which seems to make the glass uneven when i try to level the printer manually, if anyone has any tips or tricks for me please do, since i am stuck and basically unable to print

Bed: Official Creality 3D Tempered Glass Heated Bed Build Platform for CR-10/CR-10S 310x310x4mm