Fix existing Shopify Website

Hello, I need the below fixes to be made to my existing website.
1. Integrate shipping for Shiprocket and ensure that shipping is working as expected
2. Create Orders page to track order status for current and past orders, view order history and request exchange and refund.
3. Create transaction history page to view transaction details.
4. Adjust the Accounts page to view customer details, add credit/debit cards, primary and additional addresses, reset password.
5. Adjust navigation to the right pages.
6. Load more option and click to move to top or bottom of the page
7. Ensure the color coding is standardised across the page
8. Provide option to unsubscribe from the mailing list automatically
9. Search functionality isn't working as expected, needs to be fixed (doesn't search as expected and remove all doesn't work)
10. Fix any other defects identified during development/testing.