Extra Activities UCAS can only add 2

Unfortunately, no, but you are able to talk about more in your personal statement so take advantage of that. Maybe put your two most important ones, like ones that link to your course more and ones that you can talk the most about should you be interviewed for any of your courses and they question you about them.

Ah okay, thank you very much! I was thinking of adding any activities I couldn't mention in my personal statement but would it be better to include the two most important/relevant ones even if I include them in my personal statement?

I'd say so yeah, you can go into more detail about those ones. You can always mention the less important ones still in your PS, but definitely put the most important on your actual UCAS section 🙂