Capital letters and symbols in SEO Title – Good or bad?

Hello guys!
This is my first post.
I read this awesome forum since several weeks and now it is the time to write my first post! :)

I am creating a website and I starting to see the first results in Google SERP.
In the page title (the one that is shown in Google search results) I currently write the title in capital letters with symbols.

In example: ♥ PAGE SUBJECT ♥ BLA BLA BLA

The question is:
– Can the capital letters and the symbols penalize my website in google ranking?

Thanks guys!