Contacts and Google

Since 1984 I have primarily lived in the Apple Ecosphere. May love it and many Hate it, and there are others. As a Notary, I felt compelled to embrace Chrome and the Google Ecosphere. I had contacts from , prior to that time until now Some included the deaths, divorce, accomplishments, etc. covering most of the 80+ yers of my life. I wanted to sync everything and the next thing I know is that my contacts went from 1,100 to just over 300 and those remaining were skeletons. I entered some new ones and the next day some remained. How can I make peace so that what I need and/or want remains accessible?
Not always dandy dan