okay yeah that's pretty much me
Several times, it has been as if I "couldn't take it anymore" and made some absolutely drastic change in the form of self-improvement after some stressor. (forgive the "entj perspective"--it still fits)
Taking everything personally and subjectively means taking everything upon your own shoulders, which can translate into a desire to do anything possible to tackle everything head-on. Hence, yeah, the self-improvement kick.
It's a balance. We can be prone to overload if we realize that not everything is about us--not in a selfish way, but more the standpoint that we should not feel responsible for absolutely everything that goes on around us.
And we have to recognize our motivations, too. Although others can spur us to change, we are ultimately healthier if we include ourselves and our own motivations in the picture, deciding whether it's what we really want to do.