overcommitment

Hi everyone, Even though I've been practising GTD few a few years now, I still have a personality trait of time optimism. I often underestimate how long something would take and I end up over committing myself. This results in me having to adjust expectations with persons and with myself. Can...

First of all, sorry for the long post - but I'm desperately looking for advice, and I need to vent a little and explain my situation fully. I tried to format the important bits, hopefully it helps. I'm currently in the situation where I need to and want to use my time productively. I'm deeply...