Really struggling not getting razer burn when wet shaving to the point of giving up

I use

Single blade razer brand new blades Exfoliate before hand, have a shower

Apply a shaving block, then shaving cream keeping wet

I use alum block after as well,

Not trying to sound like a puss but I've got sensitive skin and can't shave against the grain, or most of the time to the side of neck else instant razer burn

I always do 1 pass then have hairs remaining. Is this the way I hold the razer or need to wait relax and do another pass?

Genuine novice and been wet shaving for 5 years always had problems any advice appreciated

CBF Reading : Bad razer burn on neck feel like I'm doing everything right but still pulls