First a caveat - I have no idea what your experience is; I don't recall off hand reading anything else of yours but the desperado one... So if I am teaching how to suck eggs, don't be upset.
180ml of milk in a 600ml jug fills the jug to overflowing? Either I am misunderstanding or something is wrong. My 600ml jug I fill to under half (about 1cm below the beginning of the spout) and foam it for a mug of Latté. At that point (it's a big mug) my milk is about 1cm above the beginning of the spout, i.e. nowhere near the top of the jug even with it on an angle.
Ditto the above measures in my 1L jug for 2 big mugs.
Here is what I do - I start the steam (give it a couple of secs to blow out the water and start steam) then turn it off, put the jug in place on an angle and after maybe 3 - 5 secs I start texturing. The jug is on a fairly steep angle and I note where the milk is to begin.
When the milk has increased in depth by about 1/3 or so, I push the tip further in and concentrate on heating the milk to the right temp. (I have a thermometer now but I used to just tap the jug side to check for the temp at which I could not possibly leave my fingers there)
As the sound changes (kind of a background noise that deepens in pitch - means the milk is approaching the right temp) I do a little more texturing, but stop that for the last 15 seconds or so.
Turn off steam, wait a few secs as it dies and remove the jug smoothly from the wand at the same angle the wand is. As soon as I turn off the steam I grab my moist cloth and as the wand comes clear I wrap it and clean it.
I also hate waste and always get very close to the right amount of milk in there - if I have wasted 250ml of milk in 10 months I'll bare my bum. I've never had the milk rise anywhere near going over the top and I make no claims to being a pro at this... well maybe in my ability to judge how much milk it takes to fill different size cups.
Blowing bubbles in the milk sounds like you might be steaming with the jug straight up&down rather than on an angle and placing it so the wand goes down where the spout is. Maybe turn it around so the milk is on an angle and the wand goes into it properly?