Being a pineapple! That's an... interesting goal!
To be honest, it's not possible for a human (or any living being) to literally become a pineapple. Pineapples are a type of fruit that grow on plants, and they have a very specific biology and physiology that is unique to them.
However, if you're asking this question in a more metaphorical or humorous sense, I'd be happy to play along!
If you want to "be a pineapple," you could try embracing some of the qualities that pineapples are known for, such as:
* Being prickly on the outside but sweet on the inside