u/Final_Blackberry6002

So I have had 4 credit cards for the some time now

ICICI Amazon - For amazon shopping monthly spend ~10K
HDFC millennia - Backup card Monthly spend ~10K
HDFC Tata neu infinity - All UPI transactions Monthly spend ~ 40-50k (used it for flights and hotels as well)
HSBC Live+ - Primary card for all the shopping, outings online others food etc. Monthly spend ~ 40-50K

Now HDFC has upgraded my millennia to Regalia Gold, What changes in my usage pattern should take place for me to optimise my card usage?