15 year old considering options

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To add I'm 15 my hairline has considerably recede and bald spots in hairline are clearly visible. My dad and his side of the family have a full head of hair while moms side ( uncles grandpa moms uncles are all bald). should I start using minox from next year and when should I use propecia if at all I would use it. Should I make my hair stay till like I'm 25 and then get a hair transplant. And what will be the price of minox and propecia monthly in the us. I live in houston and are there any reliably hair doctors here. I will add pics if asked to. Any help is welcome
Thanks!!!!!!!