At this point you have a great head start:
You have 3 things working for you: You're 19, Black (or mixed, whatever you prefer) and never stepped foot into the gym. So you have age, genes and the fact that your muscles are very weak and any type of change...will promote growth.
I'm just concerned, you've never lifted weights? Don't high schools in PA have mandatory PE classes? I was forced to lift weights in high school because in order to graduate in Florida, you had to have a certain # of credits 1 being fitness of sorts.
I didn't start working out/working out until I was like 21. I did initial free training sessions, but then had enough basic knowledge from high school that I didn't feel the need to continue.
Start with 3 basic exercises for your first month that hit Chest, back and legs. You can also do stuff like bicep curls, situps, triceps to hit smaller ones. Do 3 sets of each 10-15 reps. If you can't do atleast 8 it's too heavy. More than 15 you're not working hard enough (except for other circumstances, again just stating the basics here)
Eat before and after. I wouldn't get too happy about protein shakes. It just fattens you up around the waist. Protein only stays in system for 4 hours, and if you're working out hungry you're breaking down muscle.
Cardio after or on separate days, never before a workout. Stretch afterwards. You will be very sore for 4-5 days, this is normal. Take 48 hours rest.
I would sign up for a gym like I did, and take advantage of their free 2 or 3 initial personal trainer sessions just to get the basics (and most likely he'll be hot). Working out is complex, but if you know the basics at least you won't hurt yourself.