@Ilia ********
"renew my visa" ???? You need to apply to the 1-year Extension of Stay Permit from out of the 90-days stay permit you got stamped when you entered Thailand using a single entry 90-days Non-Imm-O visa. . . So in case you have no deposit in your Thai bank account over a minimum of 400,000 THB, seasoned for two months on the day of application to the "extension", or you don't have an income affidavit from your embassy over a minimum of 40,000 THB monthly, you cannot apply for the "1-year Extended Stay Permit based on being Married to a Thai Wife". You do not and cannot "extend my visa". You can only get your stay permit extended. . . . . If you are already outside of the window of time, you will need to exit Thailand and start the whole process of applying for the 90-days single entry Non-Imm-O Family Visa, again