There's a good chance you will have to apply for a new non-o. If you're next extension isn't until mar-2026, how did you get your extension that would start Mar-2025?
I believe most want it current within the last 5 business days. Your passbook showing current balance should be obtained on the day of your extension application.
Keep/put as little capital in Thailand as possible. Invest your capital in your home country and transfer what you need (visa requirements, expenses) from the earnings. Rent, don't buy. Real estate is not an investment for foreigners in Thailand.