Eating homemade sushi every day. -- Is it safe?

Since no one has answered, I'll throw in my opinion. I personally would not take that chance, but I've had food poisoning, though not from eating raw fish. Not fun. It was one of a myriad of things that went wrong that led to the worst flare of my life.

Here are some questions you may ask yourself to help you decide:

How much do you trust the source of your fish, that they are fresh, healthy specimens from clean waters, properly cleaned and gutted, kept chilled at ideal temperatures, and handled very hygienically? Is there any chance of it not being the actual type of fish you think it is? That is, could it be the notorious "ex-lax fish" that causes severe gastric symptoms for healthy individuals that has been sold illegally time and again as a cheap substitute?

My dad was an avid fisherman and we grew up eating fresh-caught fish, but always well-cooked, never raw as is the mode of the day. Even with that, after I was diagnosed with Crohn's, I was a stickler for how the fish was handled before and after cooking. But I grew up with a mother who thought pork was only safe to eat if it was charred black pretty much inside and out.

Sushi does not automatically mean raw fish.
Raw fish is sashimi.
I lived in Japan for many years and I love all Japanese food, which is so much more than just sushi. I would eat it every day if I could, not just because it's yummy, but because it's so mild on my guts.
I think a white rice diet is great for anyone with IBD and adding a little seafood is super good for you.
Just try it out and see how you feel!
:D

NCOT
You're darn right you would love Japanese food as a whole.
And it's so cheap too!
Most people think it's insanely expensive in Japan. Hotels and booze may be pricey, but I could eat anywhere and get a lot of food for a very little price, such as japanese bento meal or gyudon beef bowl or victory donkey beef patty meal.
In the early evening, all grocery stores give discounted cooked food that's all super fresh, just to empty the stores.
Check out this tonkatsu meal! Most places sold this all for less than 7 bucks/700 yen.
https://upload.wikimedia.org/wikipedia/commons/8/8a/Tonkatsu_set_by_zezebono_in_Sapporo,_Hokkaido.jpg

The trouble is, I'm never likely to live in Japan :-/

You probably a) don't have an interest in quirky Japanese RPGs and b) don't own a PS Vita, but if by chance you answer yes to both, I highly recommend Persona 4: Golden. It's set in a small Japanese town and the writers seem to be serious about their food. The characters are all thin as rakes, but never stop eating. There's no concession towards western palates either - it's all completely Japanese.

If I spoke Japanese, I'd actually love to live in Japan for a year or two. Think without speaking or reading the language, it would be infinitely harder though.