quant questions

There’s no shortcut. Application is a pattern-recognition skill, and pattern recognition develops only by solving lots of questions and reviewing your solutions. Don’t just check whether your answer was right—understand why that method was the best choice. And if one topic keeps frustrating you, leave it for a while, work on other topics, and come back later. You’ll often find it much easier.
Hope this helps !!

yaa i face the same problem too try starting with some easy question that might help get the hold of it