Gaining weight requires an excess of calories, and this should be in the form of good wholesome food. A general rule of thumb is more recovery days than strength training days within the week. Again, as a high school athlete, youth is on your side. Don t get into bad habits though. Get a minimum of 8 hours of sleep each night.
Age is an important factor in the response to training.
High school athletes need to be aware that they will be more successful with a patient, progressive approach to strength training. Copying the routines from muscle comics leads nowhere fast as these routines, if truthful, are performed by physically mature, drug assisted, professional athletes. At this point, concentrate on big, basic exercises, and focus on becoming stronger in these. Anything works if it is hard, and progressive. Realize that your success depends on how hard you work, and reaching your goals will be determined, to some extent, by these factors.