Hello aspirant

First of all you neither need to feel lonely nor depressed . I won't lie to the fact that changes of getting admission in government college with this percentile is quite less . But yes what you can definitely try is to boost up your score in the upcoming session of jee mains . Work on your strengths and learn the chapters from which questions are frequently asked , as many a time questions of same variety are seen repeating in jee mains . Also at least for once just look at all the previous years carefully before the exam and only attempt the questions you are sure of . Also if this does not works , participate in the state level counselling and take part in the same till the physical rounds of counselling.

Hope this helps

All the very best!