Got a speeding citation

I'm not sure if this is the correct subreddit, but i don't quite know what to do. i got pulled over ?(for the first time) going 20 mph over the speed limit. the officer gave me a citation and said to plead not guilty to dispute it in court, to try to minimise the amount of points i'll get on my license. the fine is pretty expensive, and it'll be tough to pay. would it be worth it to dispute it? should i get a lawyer? i'm afraid that would be more expensive than just paying the fine. i've learned my lesson obviously, i just don't quite know the best way to handle this. i can't lose my license, due to my job needing a valid license. should i expect to have to talk to my boss about it as well? any sort of advise is appreciated!