Welcome!

At 5 months you clearly have an established beard, so that forum's probably the better place for your thread, but I'll leave it here for now for comments from this group.

The only advice I can give you is to keep doing whatever is that you've been doing for 5 months! You beard looks solid, shapely, and healthy, so just let it grow. As for the different hair and beard color, roll with it! It's very common and, IMHO, looks great. Do you not like it (if that's the case then, by all means, cut it - the hair, not the beard!) or has someone commented negatively about it?

Cheers!
Tom


Some helpful links:
Library Central of Beard Growing


Taming the Wild Mustache
Tips for eating and drinking with a big mustache

Excess on occasion is exhilarating. It prevents moderation from acquiring the deadening effect of a habit. ~ W. Somerset Maugham
A jerk with a beard is just a bearded jerk, but a bearded gentleman is awesomeness personified. ~ Triibeard