Should I keep writing stories? If so, any ideas?

I write stories when an idea comes 2 mind. Haven't had any ideas that were good lately. Here's what I have:

1. A girl named Shari and her blood-related simbeote, Poison
2. A girl named Eliese meeting the Hulk,
3. Bowser kidnapping Peach and falling in love with her
4. A story on Greek gods and Goddesses and people from the world today...

yeah, not that great. If u can, please help!!!