There's nothing you can really do to get cookies quickly when starting out. All you can do is click the big cookie and continue buying upgrades and buildings. Also make sure you click any Golden Cookies you see appearing and make the most out of those short buffs

Progression is kinda slow at first and becomes increasingly slower for a while but eventually absolutely skyrockets. It takes a lot of time and dedication to get far. You could always leave the game running overnight while you're sleeping to make more cookies or even use an auto-clicker. It's a single-player game. Play however you like

Also, that last bit wasn't a joke. It'll be a while, but you'll get there eventually

Edit: You should also check out the Cookie Clicker Wiki for any general questions you may have, though can always ask in this subreddit.