Don't stress too much about it. I work for a surgeon who specialises in skin cancer.
it will be removed, you will go back for results normally 1 wk later and will be told if they removed it all. You will more than likely need to have regular life time skin checks, normally every 3 months. You would be surprised how many younger people get them, the same with melanoma. Best thing is slip slop slap and keep out of the sun. Once it has been removed and healed up and in the healing process they will tell you to use vitamin e and sometimes a silicon tape band aid sort of thing so that it heals properly and isn't noticeable. I have seen people come in here with nasty things taken off there face (1 lady about the size of a golf ball!) and 6 months later it has healed up perfectly. Make sure you see a decent surgeon or even a plastic surgeon.