This is how it works: You brew consistently. So say every other week or every month you make a new batch of beer. After a few batches, you’ll be so busy drinking batch #1 that you’ll forget about batch #3 which is still carbonating. And when you finally finish batch #1, lo and behold, batch #3 is ready!
I’m probably less patient than you, but I’m able to wait 6 months to drink a beer because my pipeline is filled. The graphic below helps explain it by looking at your first 9 months of homebrewing if you started in January. It assumes you brew once per month and it takes you 3 months to drink a 5 gallon batch of beer.
You can see that it takes a few months to ramp up, but by April you have 3 batches of beer available to drink. So even though you are only brewing once per month, you still have plenty of beer to drink from previous batches. That’s The Homebrew’s Pipeline of Awesomeness in action.