I've been epileptic for 22 years now, since I was 6ish. It's never affected my sport - I swam competitively at school, I've got a green belt at Judo, have fenced, trampolined and cycled.
I've been on my current medication for 12 years (they didn't medicate me at first because my fits were only one a year and they hoped I'd grow out of it, put me on valproate at 12 when the fits became slightly more frequent,then changed it to lamotrigene when I was 16). Once the medication was right, I've had no further fits (11 years now and my driving licence is no longer only a 3-year one).
Basically, if you are lucky like me you may just be able to take the medicine twice a day and forget about it otherwise. Yes I have a necklace, I carry a card with my medication details and so on, but that's no hassle. I'll never be able to scuba dive, but that's not really much of a hardship.
Good luck and don't despair.