Migrate Outlook calendar to Google calendar

Hi! I have a perfect 5-star rating on Upwork. Contractors love to work with me! 1. Somehow Outlook has given me 4 calendar files and many duplicated items. I'd like this all merged together. 2. Somehow my Outlook is integrated with Google calendar. Both systems are fine. I just want to make sure that it's all still working after you fix #1. I'm ready to give up Outlook calendar if that's easier and just use Google calendar from now on. 3. I think I might have Google calendar items in more than one Google account. I'd like that merged together also so that I only have one calendar with one Google account. 4. I want to make sure that I can still receive calendar invitations by email in Outlook and they appear in my calendar. 5. I want to make sure that I can still create meetings on Zoom and it will still appear in the my calendar. I'm too confused to fix it myself. Could I hire you to grab my computer over Teamviewer and fix it?