My battery health damage please give my battery health hundred percent humble request

You cannot improve the Battery Health capacity. It cannot go back to 100% unless your replace it with a new battery.

Battery Health & Performance 

Your battery health is fine and is undergoing normal usage. iPhone batteries, like all rechargeable batteries, are consumable components that become less effective as they age. You should change out the battery once your Battery Health reaches below 80% which will take over 2 years to reach under normal usage. Until then enjoy your iPhone.

Here is some more reading on an iPhone battery and its performance ➡️ iPhone Battery and Performance - Apple Support

Axel F.  

This is not Apple Support. Use the link at the bottom of the article above.

In addition to Axel Foley's excellent advice, see also:

When to charge your iPhone or iPad - Apple Community