Playing a 47-turn session is pretty long and I can already see many mistakes. Maybe the most significant one is improving 4 tiles, but building a settler at size 3. You should have switched to settler immediately when growing to size 3 OR kept growing to size 4 building a warrior OR built only one boat. Now your worker is on the way to improve silver, although you won't be working that for many many turns. It would be much better to chop now. Your scouting with the warrior has been quite reckless. Knowing what is far away from our capital is not useful information at this point. Spawn-busting near the capital is more useful. With no unit in the capital area, settler due in 8 turns, it's very annoying if a barb archer spawns. I think good 2nd city sites are 3W of cap to share crabs (since you invested in 2 boats) or 3S1W/4S1W to claim pigs. Your warrior can only reach the pig-city in time to protect the settler.