I'd go fishing first followed by Sailing, because the Lighthouse Lakes are actually the best tiles past the Corn, and they also give

. Building non-riverside Cottages seems to make little sense on this start, and BW imo also doesn't make sense, because you settled with almost no trees, so research it later.
After Fishing -> Sailing, I'd go for AH, to see where Horses are. You definitely want to have some of those with Isabella, and it gets you nearer to Alpha.
Build a Worker, improve the Corn, build Warriors 'til size 3, work 2 Lakes, build a Settler. Then get up a Lighthouse and afterwards continue with Settlers. You won't need another Worker for long, because there's basically nothing to improve around your capital except for the Corn in this scenario. Maybe this will make you wanna get TW early, so the Worker can build Roads towards your 2nd city, the Traderoute will be important, as

from only some lakes is not much, and you also don't want to have the Worker stand around. Probably TW after AH, you first want to see where the Horses are, before you can decide where to build the road, except your Warrior finds an awesome 2-3 Food-spot with great

.

is what you should look for with your 2nd city if it's possible, 3rd city at latest (Horses have priority imo) . You only need BW, if those spots have the trees your capital is missing, if they don't, go Writing -> Alpha and get it by trade (hopefully, low-level-AIs might maybe not even have that than yet) .