There are a few bits and pieces that can be used to make you last longer (though make sure you have an idea of what a reasonable length of time is, as some people take porn a bit too literally 
).
Constriction can help for some, and vibration is another (though some people are the opposite). Delay sprays, condoms (or thicker ones if you already use them), penis sleeves - these all dull sensitivity. More sex can help, as that can acclimatise you to the sensations more than sex once every 6 months. Mixing it up is good too, so don’t think you have to stay in there from start to finish. Moving from sex to oral, to toys, to kisses, and back to sex again can help prolong a session in a fun way. 
Different positions can also slow it down or speed it up depending what you need.
There’s a guide and a podcast episode that might be interesting?