How can someone build a successful personal brand or content career on the internet?
Make content you personally like and would consume yourself rather than chasing what you think the audience wants; authenticity will eventually find an audience, whereas constantly searching for what others want is less effective.
How do you get started seeing a therapist/psychologist if you've never been?
Go to a GP, describe your symptoms, and they'll refer you to a psychologist or psychiatrist; with a mental health plan you get subsidized sessions, and if you don't click with the person you can easily ask your doctor for a referral to someone else.
How do you create your best creative work?
Create when you feel the need to, not when you feel obligated to; forcing work on a schedule produces worse results than writing or filming when inspiration genuinely strikes, even if that means writing on your phone or in unconventional moments.
What should regional radio presenters do to stand out and advance their careers?
Keep going, make original content, scare and challenge yourself, maintain a healthy fear of mediocrity, annoy your bosses, constantly ask for feedback, and don't be afraid to self-promote ('be a PR whore') rather than staying stagnant for years.