I started getting floaters at around your age too. They may be a product of anxiety, though for me they weren't. Stress can definitely make you notice them more, so that's possibly what's happening.
As always, when you notice more floaters than usual, you should go for an eye test just to be on the safe side. I have tons of floaters (among other kinds of strange things wrong with my vision) and sometimes I can notice them more than others. That said, I haven't noticed them in months...
But yeah, get the eyes checked. They can assess if there's anything wrong very easily, and you'll feel much better when they give the all clear.