What would everyone do in the short term ( few days to a week) to prepare for a tournament? I feel like cramming would be ineffective and just wear you out. I have a local tournament to prepare for and I'm wondering how to approach my study plan.

Tsumego.

For me it is:

a) go through some opening stuff: fuseki/joseki
b) relax
c) do not do anything go related the day before
d) sleep enough
e) pack water + snacks

If you know some of your opponents, you can prepare for their "style" or favoured openings. On the other hand you can prepare openings you'd like to play. Else... I think one week really doesn't matter much ^^

_________________
My "guide" to become stronger in Go

This. Especially if you don't do many tsumego in general anyway. Lots of easyish ones.