Hello aspirant. Tifr is really one of the tough exams and competition is ofcourse stiff. But if you well plan and prepare, definitely you would be able to place yourself in a good place

1, first know the entire syllabus and divide into parts. Not just the syllabus, each and every topic and note it down. Don't look syllabus in a widee way, as in, donot generalise and put the topics, narrow down and note down each topic and sub topic. This would help you not to waste time

2. Plan your day according and finish that particular topic planned by taking notes. Mark the difficult ones and make sure once you know easy ones, you remember them for long time

Organize the entire syllabus and divide that. Leave the parts related to memorizing to the early morning and math related to nights

3. Take as many as mock tests you can. Nite down your mistakes and learn concepts. Make new mistakes every time. But remember, don't repeat the old mistakes. Previous year questions solve them and practice to your best

If you are able to use your time productively through self preparation then you donot need to go for coaching. If you were not able to coz of work or other things, then I would suggest you to go for coaching

All the best

Regards

Nikhitha