I need to make sure I do prematurely ejaculate, but don't want to be unable to maintain an erection. I have kratom, kava, mucuna, catuba and kanna. I am a daily kratom user and often don't feel much effect from it anymore (perhaps my dopamine levels are quite low), but it is the only legal thing I've known to delay ejaculation. I have tried kana in the past and I didn't notice any physical effects, same with mucuna but maybe I could dose more. I have never tried catuba and kava seems to make me drowsy. Of my options, which should I dose and how long before sexual activity? I could drink a bit of alcohol too if it would help.