All you have to do in investing is buy quality businesses at reasonable valuations and hold with utmost patience.
Rest all is ancillary. FII DII data, stock market fall, all the analysis paralysis, etc, etc. Businesses function irrespective of what happens with all the above.
In 10-20-30 years time frame these things don’t matter. Only strong businesses with strong earnings will matter.
Rest all is noise. Ignore the noise.
Focus on businesses or I may say, mind your own business (A strange phrase I grew up with). As a stock market investor you’re in business of buying businesses.