Hi Flimflam22,
Welcome it may seem daunting at first but with a patience and education it is easy. May I suggest you add a signature to your profile which is a list of your equipment ( go to top of page under the big "POOL SCHOOL" button is "settings" click on it then left hand column under "My Settings" click on "edit signature". Put in pool size, and that it is gunite, what type of filter you have and what type of pump. Is the water all murky so you can not see much? If so before you start up pump and filter you need to be sure the return lines are not plugged shut and that the pressure gauge is still working (they are cheap, I would just replace it) Also familiarize yourself with the plumbing so you know how to work your equipment, you can take pictures and people can explain for you. The TF-100 from tftestkits.net is best bang for your buck. It is affiliated with this site but it is best bang for your buck ships fast as amazon. Taylor will do but more expensive. Get XL option for sure, they also have speedstir which I highly recommend because it makes testing easy. This is my third year opened pool this year in a few hours and was ready for swimming by the next day other than water too cold). My pool 3 years ago had not been opened for many years and not covered. Found many things in it including a grill. If you have a lot of solids like leaves and branches, I used a large mesh fishing net with a 3' mouth that caught leaves and branches and let water pass through. I broke a few leaf rakes before trying the fishing net. My hope is since you bought it and it was opened and paid to have it closed there are not any or few solids then it will be a breeze to bring up. I would not start adding any chemicals until you have equipment, test kit, and understand your system. My second season I did not know I should have covered with a solid cover and had a green swamp with strings of algae it, had it cleared and ready to swim in a week. Be sure to read "pool school" it is a great education and worth the time