Welcome to the community!
I’d suggest you take a look at the courses available for free at academy.uipath.com over other free resources and once you finish studying a topic say, Excel manipulation, practice it until you feel you’re confident enough.
You don’t have to purchase any license to practice. UiPath Studio Community is available for free cloud.uipath.com and if you get stuck, seek help! So many awesome people are here in the community to help you out!
And, don’t worry that you didn’t pass the test this time! I’m sure you are going to score a 100, next time!