just using regaine will not save your hair,and you say its got thinner since using it,this will be an initial shed,its perfectly normal.
HOWEVER
you need to get on the big three,the three scientifically proven methods of keeping and possibly regrowing hair
Propecia,proscar,Fincar etc etc are all the same thing with the same active ingredient which is finasteride-this is a dht inhibitor and will stop you losing any more hair....you can get it from your doctor or online
Nizoral 2%-a nice pink anti dandruff shampoo-do a search for it on here to see its benefits,use it 2-3 times a week
minoxidil-youre already on it,use it 2 times a day and ANYWHERE you are balding,including temples and hairline
hope that helps,search for 'the big three' or the individual names of the big three on this site and ya cant go wrong
:hairy: