Hello Rashmi,

A motivational technique you can apply is to set yourself well-thought-out goals and objectives. I would suggest you to find out the lackings or your weak areas after attempting the test series & try to improve that. Here are some Preparation tips you can follow:

Divide the Topics broadly into Strong, Weak and to be read properly.

Next schedule your preparation such that you revise the easy ones along with the tough ones and the “never read before” ones. This will ensure you have a clear view of what is to be studied and how you are going to do it.

While many advise to check the weightage and study accordingly, it is really not the correct way to go.

Check the weightage by all means and understand the important topics but don’t neglect to study.

Make Short Notes while you study as this is will be helpful during revision.

Write down Formulae that you find difficult to remember so that they are handy for revision.

Keep the solved problems separately indexed so that you can refresh and revise later when required.

Analyse your preparation at every step. 

You can also prefer the below given article to prepare the exam.

https://engineering.careers360.com/articles/how-to-prepare-for-gate

Good Luck!