guys please help please

so I am a mediocre student took allen in 11th and 12 offline have all resources for a good rank but still got a very bad score of 86 percentile in mains jan attempt.. Fumbled very bad but I knew that maximum I would have score 95 to 96 not more than that but yeah.....

I only want to ask how you guys with offline coaching prepare?
watch yt lectures or just solve your modules?
if do not get answer try it and go to teacher or after some time google?
I am giving up my social media distraction since few days and maybe I am successful and want to improve myself in drop year and somewhat in april so please someone guide me and tell about themselves