I'm a Manhattan-living professional woman in my late 20s, for what it's worth, and my two cents:
1. Make sure you're not using beauty as some sort of crutch. It's a great hobby, but it shouldn't be a requirement for a fulfilling life, and I think being comfortable with yourself bare skinned and unwaxed and unprimped is incredibly important. You probably have more time and money to invest in yourself at this point in your life than at any other point... which ties to the next point.
2. Don't get too used to these spending levels. I agree that it doesn't seem like it's hurting you much (but see point 3), but a. you may not always have this sort of flexibility to prioritize these costs and b. you may end up in a career, city, or general life situation where what's expected of your appearance is different, and you'll have to adjust. I spent decades with my long strawberry blonde hair and didn't realize how invested I'd become before my professional career pushed me to cut it. Of course you can always resist norms that require you to change your appearance, but I decided to save my fights for things that were ultimately more beneficial.
3. You are spending a LOT of money on your appearance. If you plug in the effects of dropping your beauty expenses from 3600 to 500 in to an early retirement calculator with some basic numbers (try networthify ), you'll be appalled. I plugged in a basic 40K salary and took you from saving 10K a year to 3100, and it literally added nine years to your working life. Maybe that trade off is worth it for you, but I'd definitely play around with calculators and find a trade off that is worth it to you. You have a unique situation with no debt, and you could reach FIRE at 30 if you made it your focus, but probably not with those expenses.
4. See how you can pare down your routine to significantly cheaper levels. Even if you don't do it now, it'll be a good skill to have, and probably teach you some skills outside your comfort zone.
5. Do you invest in anti-aging treatments? Not something I see discussed here very often, but holy crap is there a serious disadvantage to being over 35 as a woman. I'm not there yet but I see it over and over and over. I think investing in anti-aging moisturizers and sunscreen is a serious investment in your future. I am a diehard feminist and don't think that men should be valued MORE highly as they get older, and women should be valued significantly less, but that is the world we live in right now. Something to consider.