I began on a similar craftsman chicom machine. To say its a pile of ****, is being generous.
However, since the machine is so difficult to work with, you learn technique since you cant depend on the machine to cover up your mistakes. I built my first fab project with it which was a 55 gal aquarium stand made from angle and 2" square tube. I also made a couple of exhausts with it.
Dont even think of using welding wire from HF. I made that mistake once.
I got by with the HF autodarkening helmet for several years before I got serious and bought some nice equipment. The HF helmet is no comparison to a reputable brand helmet, but it will work and its better than trying to hold a mask, the gun, your work, and learn to weld at the same time.
At your age and with your budget I think its a good start and it is absolutely better than nothing. At least its not another video game. A good used stick welder would probably be better, but Im guessing this might be on a christmas list?