It should not be. Forcible and tight fist masturbation may traumatize penis. Give a bit rest. Then do softly with lubricants.
Quick orgasm and few seconds masturbation is weakness. Classic Ayurvedic aphrodisiacs (Vajikaran and Stambhak - means sexual strength and preventing premature ejaculation) are required. U cant get pure, clean and quality aphrodisiac in mkt. We make our own. U may either take both Vajikaran and Stambhak or only one of them if u do not feel to enjoy both benefits. Pl consult for more details
Next Steps
Start nourishing balanced foods with little Desi cow ghee of A2 Category routinely. Take milk routinely. if possible take penis strengthening cream or Tila from mkt and enjoy temporarily
Health Tips
Do not buy OTC advertised Sex medicine and no chemical drugs for sex to be used otherwise you may be harmed by the effects of these.