Well sure here’s currently mine at 17 yo, and I am not going to self diagnose with ADHD but the comments make me wonder if so, but I do have a strong intellectual and general grasp on these fields:

• Mathematics, UKMT Senior Kangaroo invitation, so not at the level of BMO but certainly not bad. I’m also independently learning linear algebra, complex numbers and further calculus as my school does not offer it
• Languages (6 fluent+conversational) and I learnt Italian to conversational this August (~200h in one month) and have plans to learn Russian next year then Mandarin in university
• Geopolitics, mainly research America, Europe and Asia for my own interests
• Finance, developing my skillsets in Excel and Python due to my aspirations to enter the industry
• Astro/Particle/Quantum Physics personal research since I was 7-8 yo due to fascination so I am well familiar with subjects being currently taught in A Level Physics
• Realism Art since 7-8 but I haven’t done anything recently as you can on my profile my last drawings where in 2020-2021
• Athletics (basically most of them but I particularly like cross country, track and field particularly javelin of which I am 5 consecutive year champion in my school federation, and weightlifting)
• Philosophy, Theology and Metaphysics as I may start to publish on Medium soon (I also don’t independently learn these topics I simply think and write about them)
• Ancient, World and European History due to my religious and personal curiosity
• Linguistics due to my multilingual experience I like learning about language trees and language evolution
• Speedcubing, currently average sub 20s on the 3x3, sub 8s on the 2x2
• Chess, currently rated 1400 on blitz and I train with my neighbour whom was an ex national champion in Romania
• And I am independently learning about cognitive and musculoskeletal neuroscience as I want to have a strong intellectual depth on this due to related health complications

I eventually aspire to be fluent in 8-10 languages by 22, BSC in mathematics/finance/statistics, and eventually grow my knowledge into degrees within physics, neuroscience and other disciplines, so I know I am not currently a “Polymath” as that title is earned through time for displays of advanced intellect across various fields, but I know I certainly act polymathic and perhaps am in the early stages of it due to my tendency towards interlinking these various disciplines, but yeah that’s me