To go to your wallet, click on your user icon (top right on desktop) and then select Wallet.

To see your own blog, click on your user icon and then select Profile. This will take you to all posts made by you on your own blog (i.e. not inside any community). If you would like to also see your posts made inside communities, then check out the other tabs in your Profile page.

Here is also a guide to the new Communities interface: https://steempeak.com/hive-175001/@peak.moderator/new-communities-interfaces-quick-orientation-guide-hive-175001