Mental changes on finasteride

I’m 21 and have been on 2.5mg of Min and 1mg of Fin for about 6 months now. I don’t know when but I feel like I’ve gotten less intelligent. I can no longer recall random facts as well and my mental arithmetic speed has taken a noticeable decrease. I put it down to lack of sleep originally but a family member commented on how forgetful I’ve become. I’ve also seen a massive shift in my priorities and have taken on different worries, all of which someone at my age should have so that’s relatively normal. I know I’m young so this shift could just be put down to personal development but I want to know if it’s possible for Finasteride to have caused these changes?