im Canadian on a triple entry tourist visa

my visa got cut by 9 weeks, so I have till Aug 8th

how do I get a non immigrant O visa < sorry im sure this has been discussed before in depth here but am stressed and sometimes it's different for different countries or origin ?

I was also wondering if I can go to Bangkok and do both non imm O and marriage visa in one week<< if so what steps are needed.

ive got conflicting info before: some saying I need proof gf and I lived together and a picture of us at house ?

I'm prob best off just getting non imm O visa 1st and getting thai bank account and depositing 400 000 B and taking my time with the marriage visa upgrade ?

thank you for any help

You have another topic Marriage visa cost and have several replies to it. No need for this additional topic. You can post any additional questions you have there.