Shave it down. There's plenty of advice on the specifics on the forum. It will change your life, and you aren't too old to reinvent yourself. What do they say? 30 is the new 20? Something like that. By now all the propecia junk is out of your system. No plugs or drugs, potions or lotions! (well, maybe lotion, feels nice after a shave).
Keep it shaved, it's clean, natural and fun.