not every one who possess knowledge can give it to you in the right way . i am someone who will start from very basic and will eventually make it to the top level for you. if you are interested i can offer you some free demo classes as well. in computer science cs stands for common sense, thins are not that difficult as it may seen at the first go. i am highly active on platforms like geeks for geeks and leetcode. if you are giving your 50% in something it is as good as giving ur 0% . i ll help u reach ur 100% potential.