that’s ok, i have a lot of years left in my life to do good deeds.
won't matter u likely will still get punished for ur sin.
Also theres no promise u will do any good deeds/be Muslim when u die anyway, sinning leads to more sin and kufr eventually.
All I will say is ur gonna get the punishment of this life and the hereafter if u commit zina. So enjoy ur couple minutes of pleasure bc its gonna be short and will go quickly
ur either gonna get a full blown sex addiction or Allah will seal ur heart for sinning and ur never going to practice or care about the deen again until u die and meet Allah.
Sex will eventually get boring for u and u will get diseases and mental illnesses from it and it will encompass ur entire life and ruin ur marriage and future endevours, u will also lose out on the deen and potentially leave Islam. The sin of Zina is worse than any other sin except from murder and shirk, so ur punishment in this life will be small compared to the punishment when u die
Unless of course u choose to be chaste and leave ur heart in peace of being a slave to constant shahwa to the point u feel no pleasure from it anymore but cannot stop due to ur insatiable desire.
Decide whichever choice you want but know noone will ever get what he wants in this dunya there is always a catch