I'm a poor fellow with tons of frustration. Sir, I did well in most of my exams and my teachers remarked highly of me. I know all expect extraordinary performance from me. Though I'm not brilliant, I'm not bad and did well. But sir, from the last month, I'm getting poor grades from my teachers. I stood 26th in a regional exam. Sir, I just can't believe this. Almost all did better than me. One who was far behind me stood 6th. Now I'm ashamed to go outside. My final exam is in two months. I'm so frustrated that everything seems to be gloomy. As if everyone is laughing at me. I'm afraid that the Almighty took His blessings back. I knew He loved me so much because He never disappointed me. But what's wrong now? The most important admission exam is knocking at my door, but I've lost my confidence. What can I do? Won't He forgive me? Won't He help me? I just don't know ...
I'm trying to figure out why you blame God for your poor grade on your last exam. Exams measure what you know, not what God knows. It is nice that God gave you a sharp mind to use, but even the sharpest tool can become dull if carelessly used.
Rather than wasting time blaming others for your problem, you need to pick yourself up and start using that brain of yours productively. A poor grade means you didn't understand a subject well, so find out what it is that you don't understand and go learn it better. If necessary, find a tutor to help you improve in that area.
But wallowing in denial and self-pity will only lead to further failures and deceive you into believing that you are not capable.
"I, wisdom, dwell with prudence, and find out knowledge and discretion. ... Now therefore, listen to me, my children, for blessed are those who keep my ways. Hear instruction and be wise, and do not disdain it. Blessed is the man who listens to me, watching daily at my gates, waiting at the posts of my doors. For whoever finds me finds life, and obtains favor from the LORD; but he who sins against me wrongs his own soul; all those who hate me love death" (Proverbs 8:12, 32-36).