I am a 17 year old male and I have been suffering from Male Pattern Baldness. Am I taking the wrong medicine? (photo)

Finasteride 1mg once a day and minoxidil 5% twice a day would be the recommended protocol. This must be done every single day to see optimal results.

Thank you for the question.
I think what you are doing is fine, however, if you add lasers (Luce) to this, you will get even better results with 0 side effects.
The Luce laser increases more blood flow to the follicle which in turn will make the thinning hair stronger and larger. 
I have a great before and after picture on Real Self of Luce.

I'm glad you've seen a dermatologist for accurate diagnosis and to get on track with an appropriate treatment plan. Minoxidil may cause shedding for the first 1-2 months and then that shedding stops. Minoxidil doesn't help all men, but does help a proportion of men.5 % minoxidil is clinically proven to be slightly more effective than 2 % so you may consider reviewing again with your dermatologist if 5 % might be an option in the future. 2 % minoxidil does help men, but 5 % is just a bit better.You might consider LLLT (low level laser therapy). It may offer some benefit, albeit clinical trials to date show not to the same extent as finasteride and minoxidil.