Yes, @scotlandx is right. But your strata committee secretary can call an extraordinary general meeting at any time. You need to introduce yourself to the secretary, and find out if they are amenable to speeding up your renovation approval. Because your renovation involves altering the bathroom water-proofing, it would be classed as a “major renovation”, which is a “special resolution” that requires a majority of owners present at the meeting to support it, while not more than a quarter object.
If the strata manager or strata committee is unresponsive, then you can request a general meeting yourself, provided you get at least a quarter of the owners in the building to back you.
So this is a good time to meet the owners in the building, and get them on your side. Obtain a copy of the strata roll from the strata manager, to get the contact details of the other owners, if you need to go to these extremes…