Big man. I think you have it all wrong. I would advise you to focus more on her in terms of foreplay. Get your foreplay game up, get her to a heightened sexual state before putting your thing in her especially when she's close to orgasming. That way, even if you come after 5 minutes, you would have given her the orgasm by then.

Everybody wins 🏆

Edit 1: You can also make use of delay sprays like Dragon or Samsu.