Sounds like your getting good advice here.Propecia/finasteride may be prescribed,this can stop/slow down your hair loss and may possibly even regrow some hair (but this is unlikely.)Oh,you can also get a newer tablet,i think its called duaesteride?and may be better but i'm not sure?There is some caution as to whether contact by the pregnant female/conception whilst using propecia may contribute to genital deformity of the foetus/unborn child.I think this is very rare and not sure if actually proven?There is also the laser comb which some are raving about but i have never tried it.Think you can buy it for ??250.00 I would say dont go down the hair transplant route yet.At your age you'll be playing catch up game,you may lose then replace then lose etc.I think a surgeon would advise you not to anyway.In years to come there may be more efficient ways to treat hair loss.There is always the shaven/grade 2 haircut you could go for,you may have a shaped head that suits this.You can use camoflages like Dermatch/Toppick/Nanogen etc,these can be very effective but you tend to have a routine of having to apply them daily etc.Anyway,hope this helps.Good luck