The Carnival Victory is a great ship especially for a first cruise. The majority of the lounges along with the casino are on deck 5. The pools, buffet, pizza, ice cream, chinese food and deli are on deck 9. Only one of the dining rooms are fairly easy to get to through the atrium unless they are taking pictures. Otherwise you must go up and down stairs or wait for elevators to get access to the main dining rooms. If interested the internet cafe is next to the cigar smokers lounge on deck 4 aft.
Best advice is to let the crew do their job and take care of you and you will have a great time. There is to many things to do onboard so just focus on a few things you really like and make the best of it.