I got to about where I predicted today- about 100k off 89 cooking.
Depending on how it goes, I may be able to reach 90 tomorrow! I'm beginning to get really fed up of cooking as well, so it won't be a minute too soon either.
Happily, I've continued to be able to sell my cooked tuna instantly in the Grand Exchange, which if you remember when I started this cooking, I didn't think I'd be able to do. I've managed to save hundred of thousands because of this- I was originally thinking I'd be forced to sell to the general store. This has also meant I won't run out of money before I finish!