Shreya, we are guessing it might have been few months that you have joined College? It will take time to get adjusted to the teaching. Every lecturer has his/her own teaching methods to use and educate students. May be it was different what you have been taught all this while and it will take time for you to get adjusted to this new method of teaching. Give yourself some time. Because shifting Colleges involves financial stress as well. And you can use that money for NEET/JEE Coaching because you are in PU right now. Who knows whether the faculty in the new College will be good or not?  Do not worry about this. Give it sometime.