If you go for some other opportunity, it will also take substancial amount of time. Duration of any other course will be at least 2 years, if not more.
You can continue to give the attempts at CA till you clear. If you are not working, I would suggest take up a job in a CA firm or with a small company in the accounts department. If you want to settle, you will not be able to take long leave as it would affect your salary. You can concentrate on one group per attempt and study everyday (for one or two hours) and utilise the weekends for studying. 25 years is a young age. I myself cleared at the age of 27.
If you face difficulty in these few years, you will enjoy a better life going forward, in terms of income.
I would suggest don't quit CA. Continue the difficult road for a better future.