Why office outlook 365 and outlook mail sucks terribly and worst emails in the whole wide world?

I have had nothing but problems with my emails since Outlook was updated. At first I thought my emails were being censored. I have SPECTRUM as my internet provider and my emails in and out passing through Outlook. Over the past month, a big majority of my emails were not received. I called SPECTRUM and the tech worked with me for an hour to resolve the issue. He had me email myself through my SPECTRUM web-mail. I did. It came back okay, Then I tried emailing myself through outlook and it never returned. So it was determined it was Microsoft's problem. I even sent email through Outlook to my Yahoo email and it never got there. Microsoft should have left the last version as is. I never had any problem before. And trying to get technical support is like me trying to get a hold of Bill Gates, which will never happen. I hope I find, which I thank there still is, another word processing program the will serve me better then what Microsoft ts doing. IF ITS NOT BROKE, DON'T FIX IT!