Play as an industrious leader. Ramesses is a good choice. Roosevelt also. Louis also.
Start with a worker and get your food tiles developed (rice/wheat/pigs/sheep/clams/fish/etc.) and build some mines. Get your other special resources developed.
Grow to size 4. Then build a worker. Then a settler (whipped/slavery).
Repeat.
In your new cities, repeat the process, but don't forget to build some defending units. Your first city should claim copper or horses for barb defense.
Don't stop expanding from your new cities until there is no more land or you are going to go broke. The slider can go down to 0 at some point, that is ok.
Once you have your first two settlers out from your capital, start the pyramids and chop it out to completion. If you have stone (bonus) you can do the great wall first (save some chops for pyramids) and no more worrying about barbs.
Once you have pyramids, adopt representation. Work food tiles in all your cities. Beeline literature. Once you have literature get the Great Library in a high-food city. If you get a GE in time from the pyramids, burn it on the GL in your highest-food city (probably your capital which will have no chops left).
After literature, beeline code of laws. Make sure you are running enough scientists to get a good tech pace. Once you hit col, whip courthouses in all your cities. Then switch to caste system and pacificism (use your first or second [first can go for an academy in your GL city if you want] on philosophy--make sure you have meditation). Spread one of your religions around, but watch diplomacy. You may have to gift some free techs to your neighbours to ward off war due to religion.
Then beeline drama and construction. Get theatres and coliseums up in all your cities. Set culture slider at 20% for 5

in all your cities. Increase the number of scientists you are running in all cities, make sure you are working food tiles.
Then beeline civil service (this gives you irrigation, so make sure to chain-link your farms in all cities to increase your food output!). Save up any additional GSs you get. Once you have civil service lightbulb: paper, education. Self-research or trade for: calendar, metal casting, compass. Then lightbulb liberalism (take nationalism). Then self-research or trade for machinery, engineering, gunpowder. If you have horses, self-research music and military tradition. Lightbulb printing press, chemistry, optics, astronomy, scientific method as you are able.
Switch civics to police state, nationhood, slavery, theocracy (if diplomacy is ok, free religion if not).
Whip cavalry or grenadiers empire-wide. Work food tiles only for fast regrowth! Draft muskets empire-wide. If possible, increase culture slider to 40% for extra

to combat whip/draft
Once you have a huge army of 30-60 units then wipe out your closest rival. Keep whip/drafting units and take out your 2nd closest rival.
If you are on a large continent, rinse repeat until you win domination.
If you are on a small continent, finish claiming YOUR continent then cottage spam, switch to CE civics (universal sufferage, free speech, emancipation, free market, free religion) and tech til you win space race. Keep your highest-food city as a gpfarm. Use great people now on golden-ages once your cottages start to mature.
NOTE: My tips assume you are able to build at least 8 cities peacefully early on and also assume lower skill level (warlord-prince) since the op said he/she is newer to the game. If you can't build at least 8 cities peacefully then find yourself some copper or iron, mass axes (and swords if iron) and wipe out one neighbour early (raze distant cities except for capital/holy cities). Then follow the same procedure.
Good Luck!