Conventions can be really good or really anxious outings, here are some tips to improve your experience.
The main thing is conventions can get a little cliquey but people are also always willing to meet new people. Going alone is OK, you may end up meeting some awesome people, but if you want to maximize your chance of having a good time it'd be a reasonable idea to reach out to people who are already going and become friendly with them. One of the best ways to do this is to join the convention group, almost every convention has a facebook or telegram group, if you don't know where the group is you can always email the organizers (from the website) and see if they have any places they can direct you. Furries love meeting new people and making loads of friends, so you'll be good!
The general rules apply, get at least 6 hours of sleep (AT LEAST, BARE MINIMUM, I did not do this once and it turned the con into a terrible mess for me), have a shower once a day (common hygiene) and just have fun. Knowing some people really helps to get invited to those room parties, these are usually the best parts of the con!