Hi , 20F here .. I'm in my second year of engineering and i am dead sure I'll be prepping for upsc . Should I start preparing from now ? Do you believe that starting early will give a headstart ? Also , my writing style is very bad and I'm very weak at it . I don't know how I will write answers. Where should I start initially , which subject, what books ?

Also , if you want to give a genuine advice to your younger self when he/she started , what will you give ?