Impossible to know for your case, and I do feel it's wise to exhaust all other options before CTB. Therapy, medication, lifestyle changes - whatever you can manage.
Personally, I have been alive for 27 years without passing any "milestones" of life expected for an adult at this stage. No degree, apartment, stable work, or social life. Even though I'm close to graduating (16 credit hours left) with a 3.8 GPA, 85% of autistic adults with degrees are unemployed.
Lost my mother to pancreatic cancer last year, she died at only 63 of a horrific and aggressive disease. Shortly after, I had no choice but to quit the retail job I'd held for 2 years because coworkers gradually became hostile.
The sheer social isolation and dwindling cash reserves may push me towards CTB. I struggle with overthinking - unless the plan is perfect, I won't commit. Not afraid of death, just the cost or consequences of failed CTB.
But desperate circumstances may allow me to overcome hesitancy if I'm home alone again any time soon.