Precede vs Proceed
Precedeverb
be earlier in time; go back further
Proceedverb
move ahead; travel onward in time or space
The difference
To precede is to come before. To proceed is to go forward. A short introduction preceded the lecture; she proceeded to the next slide.
How to keep them apart
Precede is about position in a sequence; proceed is about motion. Note the spelling: one c, two e's — and proceed takes the double e.