Wedding photography does seem to be the way out for a lot of photographers. I spent 2-3 years helping people, doing charity shoots, etc, only to be repeatedly shafted by people either stealing photos, not giving credit or not getting back to me after I tell them I don't do photography for free. This last one is amazingly frequent. I get about 10 queries a month asking for free photography for events or bands, or "I'm sure they'll get you a few pints"! Seriously, the amount of people that take the **** asking for free stuff is astonishing.
So yeah, woo! Photography rocks!
Sorry to hear about your health problems. Health is something you take for granted until it goes on the fritz. I'v had a few pretty bad injuries over the last few years, although they are mostly better now. But I do know bad health/fitness can get you down after a while.
Wedding photography isn't much different tbh. Plenty of brides and grooms try to take advantage of photographers. Often if they have booked a nice venue, they think the photographer will discount or even do it for free because they will want it in their portfolio. Others will seek out noobs/students for their free photography.
For allot of photographers wedding photography is hell, and brutally competitive.
When I started out I made a conscious decision to price myself out of that BS (or at least most of it) and just try and deal with the shortage of bookings. I was pretty short of cash for a while, and it would drive my mum crazy when I would turn down offers from B&G's looking to book me at a discount. My mum would be like that's £350 your flushing away when your not even doing anything that day.
I never actually explained this fully to my mum other than say I had a strategy. So she pretty much stayed angry and frustrated with me for quite a while, and thought I was just lazy. I was just worried my strategy might sound a little bonkers.
Basically I'm fairly self aware of my strengths and weakness's as well as certain quirks. Generally I often lack motivation and focus in mundane things and do everything at the last minute. However I knew from previous experience that I become a bit obsessive over anything that becomes a hobby. EVERYTHING.. even tiny things become a big deal to me and I can't help but dedicate huge swathes of time learning/practicing. It's why I'm sure numerous people here have wondered why I have spent so much time arguing over relatively tiny insignificant details in sharpness, dynamic range, autofocus and so forth.. I can't help it.
So basically the plan was to use my OCD/perfectionist tendencies to my advantage.. but in order to do so, wedding photography needed to remain a hobby. This meant I had to try and avoid weddings I wouldn't enjoy.
The main goal was to increase demand by improving my portfolio (I should improve my marketing as well as I suck at that). This meant I placed allot of pressure on myself at weddings. As far as I was concerned I needed to make every one of them count, as my back was pretty much against the wall.
Nowadays things are allot better. Still things are always changing, competition is always getting stronger. I'v noticed some local togs are blatantly copying me. It's to the point where I see they have shot at the same venue as me, but they have used the exact same pose and almost the exact same framing, only more crooked. I'v 'borrowed' allot of ideas myself, but I at least try and add my own spin on it, else it's just a cheap ripp-off.
Also I'm happy that without explaining it, my mum kind of 'gets it' now. I heard her having a conversation with someone who was saying my photography was progressing quickly. She said that's because he becomes a little 'obsessive' with hobbies. Apparently it runs in the family.
Right now the plan is still the same.. treat wedding photography like a competitive hobby and respect it. It's why I set myself a limit of 20-25 weddings a year.