You know, there's a big difference between doing something as a passion/enthusiastic hobby, and doing it as a job, as a "pro"! Although you may start something as a "hobby", if you want to become "professional", well, that calls for a whole shift of "gears", and you have to keep attuned to the needs of your profession!
I've worked as a pro in a couple different fields, one running a service business that didn't start as a hobby, but I had to commit myself to being "the best in the business" (and I was pretty successful at that) by excelling on the quality of my craft, and then I also had to commit myself to the business end, getting out and winning customers and giving them great service! But seriously, even though I prided myself in the quality of my "craft", I never saw it as a "fun hobby"! It's just that if my motivation went down, well, my earnings went down!
And then, there was the time I got caught up in the "hobby" of technology. It was the mid-'80s, so computers were just coming out to play, but I delved into electronics and computer stuff as a passion, spare time but very active. That got to a point where I jumped into school, training for an actual career in tech, even though I was also running a service shop and working a part-time night job as well! But, it paid off, I started a new career with my "hobby enthusiasm" as the base, although, believe me, it takes WORK to get to WORK!!!
The point being, there is a difference between a hobby and a JOB. With a hobby, well, who cares but you and maybe some folks who care and want to see you happy, but still, it's up to you! With a Job, well, you'd best not get into the idea of being "bored"! Sure, it happens, but then it becomes a prime factor in losing that Job!
And then, as you move on with a hobby such as photography...well, it did become a hobby of mine, although in recent years various life "things" have really slowed me down. But still, my photography has been "special"! To this day, even though I'm not out taking photos much, I occasionally will glance at photos from over the years, in fact yesterday I posted some up from a "tumultuous" year back in '03, a lot of road trips, and got a whole lot of positive responses!
Note, though, that I've done very little "for pay" work. Photography has not been a Job for me, but has been a passion that I can share!