If your hairloss is slow it will really slow it down trust me. I was a Norwood 2 then after about 15-16 months it receded a bit more(the thin areas) then stayed there about 2/2.5 for 7 years. Give finasteride time, takes more than a year in my experience.
At the end of the day bro, I'm on this site looking for new research and f*** around bechase I can still style my hair and no one can tell I'm losing. I'm in the inbetseen area where it sucks to not be free with my hair styles but I still have enough to make it worth keeping my hair... but I'll tell u one thing man if it gets worse and I'm thinning, I'm buzzing down to a 0 and not looking back. Getting juiced the f*** out and moving on. Srs.