Takes So Much To Get Me Off Now

I've had my fair share of pussy over the years, so i dont feel like i missed out when it comes to sex. Have a decent sex life with my gf of 8 years. However, lately it just takes so much to get me off. Porn is even boring now. My brain is horny as fuck all the time, get a good erection, but just not getting off good lately. I feel desynthesized.