How do I fix a cylinder 4 miss fire. Code P0304.

What is your question?

Engine light came on and when trying to drive on the freeway it geeks and stalls and won't accelerate, acts like it's going to cut off so I take my foot off the gas to slow down then hit gas to accelerate and it catches and takes off fine. I have to let it accelerate slow so it won't do that again.

What makes this problem better or worse?

I can't accelerate without it jerking and trying to cut off