I think there's always a benefit to diagnosis, on a personal level. Practically speaking, having a diagnosis would allow you to request certain accommodations in the workplace or at university. I don't know about the medications because I don't take any, though as far as I'm aware, they wouldn't offer you different meds based on a diagnosis.
You should be aware that the waiting lists can be very long over here, especially if you live in a county without any autism assessment services (as I do). I found the wait extremely stressful. You should also be aware that, even with a diagnosis, there are unlikely to be many services for you as a more highly functioning autistic adult. You can look on the National Autistic Society website for a list of resources in your area. You might be able to access some more informal services without a diagnosis.
The main value in getting a diagnosis in my experience was obtaining some kind of peace of mind and the chance to understand myself better. I also had a much easier time getting deadline extensions at uni when I was overwhelmed. I haven't officially disclosed at work yet, but some of the managers know and I find they're a bit more understanding on days where I'm less able to mask my autism, and it interferes with my work.