So, first you got to learn, is, that there are 2 main reasons to run Golden Ages, except that one wants to switch Civics without revolution.
1. Get a lot more GPs in only little time.
2. Use the extra production to build troops or key buildings.
Our focus this time is more 1 than 2, because we decided dor a Spacerace, those need as much research as possible, conquering the world happens only otw. and with as little teoops as needed.
This means, that you must micro all your cities. Give the Corn back to your capital, work it, and work so many Scientists as possible. You don't need to work those Cottages atm.
Then, do the same with the NE city, except, you should continue working the Wine because it gives 2

.
At last, micro Sheep / Crabs to work as many Merchants as possible. Remember: The Golden Age lasts only 8T, so you can starve cities to hire more specialists, be aware though, no city shall lose pop.
Also micro your other cities. Silver Crabs should work the green hill instead of the village, Momty's grave should work the Iron instead of Gold, once the city grows, it can again work the Gold.
The most NW city should work 2 Artists and produce 1T of culture, then you get an instant borderpop. Don't forget to re-assign the Artists to the coast 1T later again.
Set yourself a timet (Alt +M) of 7T, so you get notified when the last turn of the GA is. Then, you must switch your civics back to Slavery and OR, don't forget this!
For War, you should have 20 Elephants and 10 Catapults. Build 4 Catapults so you have 8 and declare war, should be enough for the first city. Then the GA ends, and you simply whip what you miss to the 20/10.
Research Paper and continue with Education. Once you get the GS from the capital, bulb half of Edu, but continue to work thw Specialists 'til the end of the GA, we want another GS from that city. Should Sheep / Clams not finish the GM before the End of the Golden Age, it's ok, we'll have another GA soon with the GPs from the NE-city and where ever we can easily produce another GP (next GA needs 2 different GPs) .
Play slowly and read this post as often as necessary, those are very many moves in short tone.