1.Analyse practically before you start it (pros, cons, work nature ,if some other career suits you only if u feel nothing satisfies you start the prep :P ... )
2. Give your first attempt only with sincere prep ( gs almost done atleast half optional)
3.after 3 failures ( specially prelims) look for a decent career ( not temporary backup and get back to prep when u have a good job and confident mind)
4. Maintain a journal and join some test program to be on track and no self doubts till u finish most of the syllabus.
dont over do planning and watching too many topper strategies stick to one that suits u
end of the day time is the most precious thing invest it wisely and dont do things which u would regret later...