Getting 150+ in JEE Mains is an easy task. You would have to prepare in rightmost way. Learn how to apply the basic formulas given in NCERT for the most important topics. Solve basic formula based questions. Don't forget to study the mains only topics such as Semiconductors, mathematical reasoning,f-block, carnot cycle, hydrogen etc. They ask a lot from these parts Solve PYQ's from 2000–2020. Leave the 2021 papers as they would be helpful for test practice. Solve the papers of Mains 2021 in the month before the first attempt.With each test paper you give, identify the parts where you missed marks. Try to reduce silly errors as much as possible. Look for the parts which could've gained you more marks had u studied it. Set your goal to be high. It can be anything above 180. Follow YT channels like Physics Galaxy and Mohit Tyagi