Goldfish

When I started this I was sure
I knew where I was going
I'm not sure now

When I started this I was sure
I knew about swimming
I'm not sure now

When I started this I was sure
Amnesia made rice pudding
I'm not sure now

Every seven seconds
I tell myself to remind myself
There is a purpose

Every seven seconds
I tell myself to remind myself
I have a memory

Every second seconds
I tell myself to remind myself
There is a god

At the end of the day,
Who else changes the water?