At ur age increase in blood circulation, adequate testosterone hormonal levels and less stress will all lead to strong and lasting erections. Also the penis is a muscle and it can only be increased in thickness never in length. Take 2 capsules sexpert at night after meals preferably with milk and ghee and one capsule boom 69 daily morning before meals. U l see the results in 2 weeks. If problem still persists consult a qualified Sexologist.

Yes certain sexual exercise has to be done to improve the pelvic muscles for that u can consult me

Consult a Psychiatrist

Premature ejaculation can be cured with multimodal approach one of which is medication treatment of underlying cause and counselling

u have to learn how to delay ejaculation by diet exercise lifestyle changes and natural resources without sideeeffrcts