Hii Kuchipudi ravibabu, 

1. When ever you feel low, just think of what will you achieve when you reach your goal, feel that happiness, feel that satisfaction and try to believe that you will reach there soon, it's just some ups and downs that will come in your way. But later, when you will remember these tough moment and you will realize the sacrifices you made to reach your goal, you will feel good about these obstacles.
2. When ever a negative thought comes to your mind that you can't get a good rank, Think of 10 reason why you have the chances of getting a good rank. You can always come up with a plan, that can surely guide you to your target, Because 'If there is a will, there is a way'.
3. When ever you waste 1-2 days without doing anything useful towards your goal, you might feel guilty or demotivated. So keep yourself busy in hard work, your confidence will go up exponentially.
4. Don't limit yourself.
5. Imagine yourself as a top-ranked, and just think what a top-ranked must be doing right now. And act accordingly.
6. You can read good quotations or inspiring stories from the Internet to keep yourself motivated. Better to do this regularly.
7. Always remember that "Success is not measured by what you accomplish, but by the opposition you have encountered, and the courage with which you have maintained the struggle against overwhelming odds."
8. And to end my answer: "Giving up is easy. Very easy actually! what takes courage is to hang on. If you begin with something and don't get the desired result, you ultimately give up. Giving up could only push you farther from achieving your goal whereas hanging on could make you achieve big! You never know where you have reached and what could come your way and make your dream come true. Never lose hope. Stay dedicated, Keep believing and keep going! when you do that nothing will stop you from making your dream true! Have Patience! The key to success is not just hard work, but patience as well. Hope it helps.

Hello Ravi!

If you are preparing for Gate 2020 you should start preparing from now.May be you can also  start some online coaching or offline coaching . You should buy books for Gate related to your department andunderstand all the core subjects .You should start from the basics and then proceed to the complex topics.You should also go through the previous year question papers so that you can understand what types of questions comes from different core subjects.I think this is the right time to prepare for GATE 2020 so without wasting time start preparing from now.

Hope it answer your concerns.