I`ve been on Finasteride since 2005. Without a doubt, it has stopped or really slowed down my hair loss to a snail's pace. If it works for people, crowns are a very good responder.
Have you tried styling your hair differently? Maybe have all your hair styled upwards or the messy look which is quite popular. Maybe not what you want but it may be the best option right now until you`re in a position to maybe have another hair transplant.