Here is a list of reasons I made for myself when I moved to Norway, which is very expensive, and hit a rough patch. If you are struggling, make lists for yourself, write things out, even record videos of yourself. Some times it can be really good just to voice things and they can also be good for rewatching.
Reasons why lfrv is cheaper!
Not spending 50 bucks a day on food binges (& being wasteful)
Never having to pay high restaurant prices
Not having to wash clothes as often
Constantly fitting into my clothes
Not having to buy soap, shampoo, conditioner, deodorant, perfume, skin care products, bronzer, sun block, nail varnish, detergent, etc
No cost to animal's lives
Less externalities (environment & future of this planet)
No need to spend money to cook
No need to buy pots/pans
No need for dish soap
One to no plates, a spoon, knife, and fork will do it
No need for doctors visits or dentist
Higher productivity - more effective with our time so we can do more with it (and time is money)
Even if this weren't true, could you really not afford to put a premium on health, happiness, and complete bliss?