Use the Rogaine like twice a day religiously, don't let a day go by that you don't use it, it honestly, as compared to EVERYTHING else, has been the most helpful and least harmful...ketoconazole shampoo also called Nizoral can help a ton, you can get prescription strength from your doctor, or order it off the net at rx strength, there is also loprox which helps as well...Then you have other dht "blocking/reducting" drugs such as Propecia/Finasteride, and Avodart/Dutasteride, they block respecitively, one enzyme(fina), and two enzymes(duta) that lead to a pronounced decrease in DHT formed at the scalp which in essence leads to hair loss, but they affect your prostate and your overall testosterone as well...There are other drugs too that help: Azelaic Acid 1.5, Progesterone, Tretinoin, and Hydrocortisone.
It's honestly a major battle for most folks, especially if you add anabolics into the mix...Some guys, genetically, will have a full head no matter what, whereas some are in the grey area, and others just lose it no matter what. Hairsite.com is a great place to start and is a plethora of information. I'll say this much, I've tinkered with so many different things over the years and I've managed to do quite as well compared to most, however, it's honestly a full time job, that is unless you want to get hair restoration done, which they've come SO FAR with, the techniques that are now applied are tremendous and if you just do a search of celebs who's hair has made a dramatic comeback; you'll see how successful it can be...If you have any other questions, I'd be happy to let you pick my brain, this has been an obsession of mine for probably 15 years, and I'm at a good point with my hair but it's a war that never ends but can be fought!