Hi welcome to HCM... The cause for premature ejaculation is mainly stress, anxiety , guilt and depression... This psychological factors are main causative factors... So performance anxiety should be avoided... You can consult psychiatrist for various helping therapy like..... /master and johnsons stop start technique for desensitizing man response /penile squeeze technique /focus, breathing exercises /kegel exercise to make pelvic floor muscle strong /distraction procedures... /you can discuss with partner when to slow down stimulation /more then one condom /SSRI drug like fluoxetin if needed... If still no benefit discuss with doc for searching other cause like trauma , hormonal problems etc... Take care ...