Hello Buddy! Hope you're doing good.

If you want to give your 12th boards again in the year 2023 then you have 2 options. Either you again join any school/college from class 11 in 2022 then in 2023 you will be able to give your boards or enroll direct in class 12 and give boards in either 2022 or 2023, here again you have two other option out there. You have to talk to your school/college for the admission process  from where you want to give 12th again as every institute has different rules and regulations.

Well if you had done your 12th from any state board then there will not be any issues further. If in future you want to kjoin the IT sector then there's will be problem for you if you have more than 3 year gap in between your 10th passing year and graduation admission year. Hope this will help you.

ALL THE BEST! WORK HARD !!