I'm going to +1 this hard. Generally same story... when I turned 30 I managed to switch from my very niche career field of designing submarines (working for the navy/government) to doing what I loved (coding/computer stuff). I was a hobbyist for a while before... I took the leap and switched and now I'm happier and enjoy my work. I used to work 15 minutes a day working for the government and hated it (only so much internet you can surf/too bored). Now I work ~50 hour weeks but love what I do and I'm a lot happier doing it.