Yep. I’m about two years into my flute studies. Curriculum wise I’m an intermediate flautist now, which means I still have a long way to go, but that is a big achievement for me.
My one piece of advice, which other more accomplished musicians gave me, is seek out in-person lessons, particularly as a beginner. It’s really important to cement good habits from the beginning as it’s hard to unlearn bad habits, and you need to learn proper embouchure and even how to hold the instrument.
Like you, I was actually thinking of studying on my own when I first started and I’m so glad I listened to the advice above myself. I never would have gotten where I am now or discovered how awesome music lessons are.
Going to in-person music lessons is not only a really fun, chill, age-appropriate hobby as an adult, but it will translate into better skills on all of your other instruments. I’ve learned dozens of songs (classical, jazz, folk, pop), I can read music, I’m about halfway through the circle of 5ths in terms of learning/memorizing keys, and I’ve learned lots of scales, arpeggios, and licks in a variety of time signatures, and loads of other important things like dynamics. I’ve also gotten to experience the joy of playing music together with someone else (which is something that has always intimidated me). The good thing is that you can go at your own pace, but you are moving forward, even if it’s slowly.
Right now I’m caring for an elderly dog on top of working and everything else, so I don’t have a load of time, but I’ve already decided that after he’s gone, I’m going to start taking jazz guitar lessons as well. I’ve been screwing around on guitar since I was a kid, but I really want to learn it properly. While two instruments is the max I can commit to doing seriously I think, I’d also like to do some little percussion mini courses at some point as well. You can see I’ve got the music bug, but at the end of the day I can’t really think of anything else I’d like to spend the rest of my life working on, aside from physical fitness.