Welcome to FishLore!!
Congrats on cycling with out fish!
Sounds like you're doing fine. How does mum feel about using her sieve? lol
You'll need a good
test kit. The
API Master kit is highly recommended. Avoid the strips, they can be inaccurate.
You can test daily or every couple of days. Keep a record of it.
Here's a basic explanation:
First your ammonia will rise
In a few weeks bacteria will begin to develop and you'll see the
nitrite levels rise and the ammonia levels start to drop.
After a few more weeks another type of bacteria will begin to develop and you'll see the
nitrate levels rise and the nitrite levels drop.
When you having readings of 0 on both ammonia and nitrites with some nitrates showing, your cycle is done.
Be patient, cycling can take a month, give or take

Good luck!
Edit:
Hope you don't mind, I moved your thread into the
nitrogen cycle section of the forum.
Here's
Four Methods of Fish Less Cycling
There's a mention of using fish food in the link.