If you were a financial leader I would say move 1W. But since you are Philosphical and start with fishing/agricultre settle in palce to get those 3 clams and farm the floodplains. That's an instant GP farm, the pigs to the south can support a good second city.
Move the warrior 1NW
Food is no problem, techwise go mining/BW. If no accessable copper you are going to need hunting/archery for defense real fast. If you have copper beeline writing (wheel/pottery/writing)and chop out a library to get a SE up and going.
Good luck!
Research:
while it is tempting to go for Pottery early to get some cottaged floodplains going, I think you'll find on Immortal that you will be a military-whipping maniac in the early going, especially with two extra civs on the map. Plus you'll have tons of food to regrow, making early granaries less important. You absolutely have to locate the copper, horses, and iron ASAP so you can get one of them before the AI takes them all from you. Therefore, I would tech Mining, BW, and AH. If no copper or horses, then IW.
Once you have a military resource, you need to get your happy cap raised to take advantage of all your food. Assuming you don't build the Pyramids, that means teching to Monarchy, either manually or by chopping the Oracle for it.
So ... maybe something like this:
1. Mining
2. BW
3. AH
4. IW, if no copper or horse
5. Wheel to hook up military
6. Mysticism
7. Meditation or Polytheism
8. Priesthood
9. Monarchy (from Oracle or researched manually)
Build:
The high-seafood start is tricky, because of the heavy up-front hammer investment required in multiple workboats, resulting in a lot of production time and slowing your worker and military units. That said, those clams are great for food and commerce and you want them worked ASAP. I would recommend a build order of:
1. workboat timed to finish at size 2
2. workboat until turn X
3. worker
4. finish workboat 2 (chopped)
5. workboat 3 (chopped or manual)
6. warrior
7. settler
Turn X is the time at which you could start a worker and it would finish one turn before you finish bronze working, allowing your worker to chop & mine the forested hills on the turn it arrives.