Do you have more than one device? That is, besides a computer, do you have a cell phone? Or besids a cell phone, do you have a computer? Be aware that Dashlane Free is a gimmick to get you to sign up for Dashlane Pemium - you get 30 days of Dashlane Premium with your Dashlane Free subscription, but after that, if you want access to your passwords on a second device, you will have to upgrade to Dashlane Premium.
Having said that, Dashllane Premium is worth the price. For myself, I prefer LastPass. I signed up for Dashlane only to understand it so that I could answer questions from my sister, who has never really bothered to learn to use the LastPass subscription hat I gave her.
I have yet to figure out how to edit or delete a password entry that I have made in Dashlane. Instead, I have kept adding new, slightly different password versions for the same online account(s). This task is much easier in LastPass.
But yes, I think it is definitely a good idea to get a passwod manager, and Dashlane seems to be well reviewed.