how long do you think it will take for me to get there so far a sub 3min and 30 seconds i have completed

there is no universal easy answer sadly, other than learn from the best times and train and you'll succeed someday

when u miss the 2:50 door by 2 frames :( so close to 10 second pb

just get the 2:50 door nvm, just get the 2:40 door nvm again, just get 2:00 cycle and tie 2:24.675, if you could just, DO THAT you would succeed!