Congrats! Checking my spreadsheets, I hit $100k a couple months after my 27th birthday. It took me ~2.5 years to get the first $100k, another 1.5 years to get $200k, and I'm now 7 months later I'm at $267k gunning for $300k. I did get married last year though, which accelerated my/our savings (although we're about to have a kid, and expect to buy a house at some point, so both of those will also change things).
The first $100k is definitely the hardest. It's important to keep at it, but you'll find the money starts to pile up faster and faster. My initial projections were to be FI around age 45. Then a couple years ago I figured I could maybe there by 40, if I really worked at it. Right now based on my spreadsheet I'm projecting FI at age 36 which seems crazy.... Keep making small improvements to your budget, socking away money, and let the snowball turn into an avalanche and carry you down the mountain. You got this!