Use of a Password manager will make your life easier, better, less stressful and add security. There are lots to choose from, I like Lastpass (which you can get for free). A great review is here:

https://www.cnet.com/news/the-best-password-managers-directory/

They also found out the whole idea of randomness in a password does not make it more secure, only length makes it more secure.

https://resources.infosecinstitute.com/password-security-complexity-vs-length/#gref
https://stormpath.com/blog/5-myths-password-security