How to Start a Freelance Career

If you were to go back in time and advise yourself, what would you tell yourself as advice? I only started really using Photoshop two years ago. The understanding of lighting, composition, 3D form, depth, you know, scaling, all,. that I got from my 3D experience in environments was then able to do things in Photoshop. Find a studio with training in-house and just go there and do the course - forget about like going to university for visual effects or film school.