First thing is don't worry. There is an old saying DWHAHB it means don't worry have a a home brew. Since you don't have any yet, get a six pack of a good craft beer and have one of those.
Keep it clean then sanitize it.This is very important.
The waiting is the hardest part. Don't rush it. In most cases longer is better. This is very frustrating whe you first start.
You need a hydrometer if the kit did not come with one. Also a hydrometer flask and a wine thief or turkey baster to go with it.
If your primary fermenter is a bucket, they have a habit of leaking around the rim. This is not a disaster but your air lock may not bubble causing you to believe fermentation has stopped or did not happen. Putting it on wet (with sanitizer is best) then a light tap with a rubber mallet or the palm of your hand helps.
That's all I could think of for now so welcome. If you have anymore questions please ask. We love to answer them. This is a very friendly forum. If you have any problems with it or the members contact a moderator. They have a shield next to their name like I do.