Well There i think it's like this
1) Colision beetween(Enemy)You can aslo use "Qualifiers"
2) Set your hurt counter/extension to hurt or whatever.
3) If you have rings You give the rings gravity but, this is complicated for a begginer, then say (Create as many eg RINGS as the player has colected.
4) Then if you have an animation "This is extra help if you need it* Change animation to "hurt"
Or if you like *But only if your comfortable with it* Send me the file through Pm and i can fix or edit it for you.
That's all i got, Sorry if i wasn't clear or you didn't get it