When in doubt, always use the subjunctive mood: If I were you…
It will make you sound smarter and it is technically correct since “the subjunctive mood is used to express a wish or possible situation that is currently not true.”
Main IELTS Pages:
This website is to develop your IELTS skills with tips, model answers, lessons, free books, and more. Each section (Listening, Speaking, Writing, Reading) has a complete collection of lessons to help you improve your IELTS skills.
Subscribe for free IELTS lessons/Books/Tips/Sample Answers/Advice from our IELTS experts. We help millions of IELTS learners maximize their IELTS scores!