No, you are entitled to request to "have your data deleted" but the interpretation is basically left to the data controller. In practice this means that the controller as many options to make your life as miserable as it can/wants when you try removing your data from its systems, and more particularly when you want to remove specific portions of your data.

Twitter is a perfect example: removing "some" of your tweets is purposefully made cumbersome for users so that they get discouraged to manage their tweets. Searching through your tweets by date range or by keyword, and a button to delete all results? "Nah, too complicated for us silicon valleyers" :)

One thing to remember with GDPR is that it is not a law that protects customers. It is a legal framework that specifies a set of requirements, which companies must abide to in order to do whatever they need/want with your data. Once you understand this, GDPR becomes much clearer :)