It’s worthwhile, if you think your Uni course might be maths-related (not just maths but also Physics, Engineering, Chemistry etc).
When I first went to University the students in my Physics classes who hadn’t done further maths ended up needing to take remedial
maths sessions because they didn’t have adequate knowledge for the Physics lectures. I realise you’re not doing Physics but I think similar issues apply to Engineering and Chemistry.
If you don’t think your Uni course will be maths-related e.g. Biology, Medicine etc, then FM is unnecessary