Save my Ginger Bug!

I have started my first ginger bug and so far, not so good.

I followed the recipe from Wellness Mama but I'll explain what I personally did to see if I made a mistake.

I boiled a pot of water and soaked a mason jar in it. I then boiled another pot of water and put that aside to cool.

I bought some fresh organic ginger root and tried using a cheese grater. It got mushy so I sliced up the rest of what I needed. I tried to make it small chunks.

When the water was fairly cool (cozy enough for bacteria) I tossed in the ginger, granulated white sugar, and the water. I assumed boiling would get rid of the chlorine etc.

I mixed with a wooden spoon and re-attached the mason lid with a coffee filter instead of the metal top.

I kept the rest of the ginger (I bought waaaay too much) in the fridge, as I figured the bacteria would likely live.

Daily I took some out, cut it up, added 1 tablespoon of ginger and white granulated sugar.

After a few days I started keeping it behind my PS4 as it is on almost all day, and it puts off a good amount of heat.

It's been a week now and I have this: My Ginger Bug

To be honest my daughter was topping it up daily and insisted it was "all fizzy" but when I investigated it myself I found it lackluster. I might have had a thin white bubbly film around the edge... But nothing I would call fizzy.

I'm not sure what "yeasty" is supposed to smell like... But it smells fairly sweet, like a lemonade. Today there is actually a mild pungi-ness... If that's good, or even a thing?

What could I have done to get better results? Should I start over, should I keep going?

Thanks so much for the input!