I would say go for it if you’re able to. Productivity isn’t a binary, so you may well cope at university even if you don’t get assessed for ADHD. However, university is a path with many challenges for people with ADHD.

Many of my friends from university have ADHD, and amongst them are people who:

• bounced off of university completely and dropped out;
• went in with a diagnosis before they started;
• got through their degree with a diagnosis, but got one afterwards and wondered how different things could have been if they’d had it sooner
• did well at first, but burnt out, causing them to pause their degree and go back with a diagnosis and better support
• found their particular flavour of chaos meant they thrived in that environment in a way they didn’t at school, and they continued into postgraduate study

I know a couple people from that last category who didn’t have a diagnosis, so it certainly isn’t a necessary thing for being productive at university. It depends on the person, and it’s hard to predict in advance. Likewise, having a diagnosis doesn’t necessarily guarantee success. It can certainly help set you up as best as you can though.

In addition to things like medication, universities have loads of stuff they can do to support students with ADHD. I had extended library loans, without which I would have probably racked up loads of late fees. One friend was a productivity powerhouse, and didn’t feel it necessary to tell the university about her ADHD at first, but when bereavement caused her routines and structures to become more fragile, she found it useful to be able to use her ADHD to explain why the disruption had hit her especially hard, getting her more leniency with missed deadlines.

If you feel like you’re likely to get a diagnosis if you spring for the assessment, I think it’s worth going for if you’re able to, to help keep your options open and set you up better for success. Maybe you’d get by okay without a diagnosis, but if it were me, I’d always be wondering about whether I could have been better than okay.

The struggle is real. I described it as best I could. I think the overwhelming majority of sentiment in this thread support getting diagnosed and medicated. If you haven’t already, I would recommend reading all the comments. No one can make you do something you don’t want to do though.