16 losing lots of hair, desperate for advice

[Coco129]

Hi, my hair loss started at the start of 2015. At the time I had started accutane and since it was known to cause hair loss I chose to ignore it although I remained very observant about my hair.

I took accutane off and on for the entire year by the end of 2015 in November I stopped completely.
During my treatment I also developed mild sebborhic dermatitis.
My hair fall remained throught out the year, however I was not experiencing any change in thickness or any recession, my hair was just much more dry and had a slightly different texture, it's sort of lost its shine (it still has)
After November I noticed only my right temple was slight receding, and it is still receding today
My left temple also started receding by February 2016 however fortunately it is less then the right one
My hairline has not moved back but I really feel like I've lost some thickness and now I can see my scalp after a shower which I don't recall being able to ever before.
I still lose around 20-40 strands of every day from all over my head (it's been 5 months since my last accutane tablet)
This is really bothering me and it's becoming difficult to hide my right temple now I've also lost density all over and especially on the front of my head
Please I am dying for help, I'm only sixteen!!!
My father is bald (he lost his hair at the end of his 20s) my mothers side has no baldness
I will attach pictures

Should I start finastride?? I am sixteen but my body is more like a 17/18 year old (I have some chest hair and slight facial hair)
(I turn 17 in October 2016)
I don't want to try minoxidil as I don't think it is worth it
Also can finastride further worsen my condition after or during treatment?
Do you guys think there will be a cure by 2020?
The sexual side effects do not bother me much as long as they are not permanent
I'm just scared of losing more hair
I've visited a dermatologist and he proscribed 5 mg finastride (known as Genesis in my country) however I think it was only due to my persistent pleading
My parents are against this drug and are least helpful in this entire situation they don't even acknowledge it.
I'm so desperate I feel like secretly buying finastride and giving it a go!
Please any help will be appreciated!!! This is bothering me so much I can't express my situation properly
Thank you so much!!!

https://imgur.com/a/xvkZG
https://imgur.com/a/TuWxE