Variables aren't manageable for data like this.
You can store a lot of text. But I believe you will encounter memory problems etc etc etc.
Easiest option: You can select to use a text file and import it, or json.
Lets be honest. Depending on size of game. Going through countless variables is going to drive you made when you want to make an edit. Put them into a text file and attach that to your project. Or use json and arrays. Or any of the other options, but don't use variables - lol.
You also limited to 100 events with free version. (Import a file which you can edit in notepad, etc and use search and replace functioniality)
Here is a simple example of using text as external file: simple trivia game example of course change it to your needs.