I see that kit has the spring-tip bottle filler. That’s key. The gravity tip one always dribbles.
The 5-gallon pot can make 5-gallon extract batches by doing a “partial boil” the instructions for this are in the kit, and is the easiest way to get started.
The only thing missing is empty bottles. A 5-gallon batch makes a bit more than 2 cases, so have 2 cases and a 6-pack of empties ready. You can (should) reuse commercial beer bottles. But it’s very important to note: you CAN NOT use twist-off bottles. They must be pry-off, so you have to get non-shitty beer for reuse. About 90% of the beer labels will simply fall off if you soak them in a sink/bucket with some standard oxyclean.
A few things to consider adding to the order: PBW, “Powdered Brewery Wash” for cleaning your stuff, and Star-San, no rinse sanitizer. The starter kit only comes with enough cleaner/sanitizer for 1 batch. Also get a second recipe kit. The two offerered are good, but not my personal favorites;
You should check for a local home brew supply shop in your area, the people who run them are almost universally very helpful. This forum is also very welcoming to new brewers. Don’t be afraid to ask questions, the people here all seem to remember what it was like starting out; admins manage to keep the place troll-free
Once you have a couple batches under your belt there are a hundred different ways you can go with the hobby.
I’ve gone on wayyyy to long, but the final bit of advice. Don’t be afraid failure, like any new cooking experience, it takes a couple tries before you get good. Your first batch won’t be a 5-star, but 2-3 batches in and you’ll be better than bud for sure.