The key to success in UPSC is a good foundation. Now what you can do is to start studying the NCERT books from class 6-12 for the basic subjects such as History, Geography. As you are in 10th, you may not feel comfortable with other subjects. But you can surely read this two subjects and can be ahead in track with the preparation. See the ideal time for the USPC preparation is after your 12th or during your graduation. By that time, you will be experience enough to study subjects like Economics, Political Science etc (if you have this subjects in your 10+2, then it would be an advantage. If you don't have this subject, then it would be of no problem, you can always start learning this.). So don't take too much pressure from now. Still if you want to prepare, prepare well the Geography and History subjects from the NCERT books.

FOR HISTORY, NCERT YOU SHOULD FOLLOW:

• History: NCERT Class VI – Our Past
• History: NCERT Class VII – Our Past -I
• History: NCERT Class VIII – Our Past II and III
• History: NCERT Class IX – India and the Contemporary World – I
• History: NCERT Class IX – India and the Contemporary World – II
• History: NCERT Class X – Themes In World History
• History: NCERT Class XII – Themes In Indian History – I
• History: NCERT Class XII – Themes in Indian History – II
• History: NCERT Class XII – Themes In Indian History – III

FOR GEOGRAPHY, YOU HAVE TO FOLLOWING THE NCERT'S:

• Geography: NCERT Class VI – The Earth Our Habitat
• Geography: NCERT Class VII – Our Environment
• Geography: NCERT Class VIII – Resource and Development
• Geography: NCERT Class IX – Contemporary India – I
• Geography: NCERT Class X – Contemporary India – II
• Geography: NCERT Class XI – Fundamentals of Physical Geography
• Geography: NCERT Class XI – India – Physical Environment
• Geography: NCERT Class XII – Fundamentals of Human Geography
• Geography: NCERT Class XII – India – People and Economy

For more information regarding UPSC preparation tips consider the link below:

https://competition.careers360.com/articles/how-prepare-for-upsc-ias

I hope this helps. Wish you a great day!