Joining a coaching institute or not it's completely your choice if you really want to crack this exam you need a strong will power and motivation.
***Tips to crack NEET exam***
**Preparation strategy: **The first step is to join a good coaching centre to become consistent in studies. Besides classes you can study for 6 to 7 additional hours to cover entire topics and to revise the syllabus covered in coaching classes. If one adapts this way of studying each day, then half of their NEET/AIPMT preparation is done.
**The key is to practice: **strategy is to devote more time for practicing the weak subject. The key to success is practice those sections in which you are weak.
**Advice to the Aspirants: **The real success mantra is to study NCERT Books rather studying those weight expensive materials. NCERT is the best way to clear your basics and concepts in all the three subjects-Physics, Chemistry and Biology. Once your basics are clear, scoring in NEET/AIPMT is easier for anyone.