First and foremost, it provides me a useful framework to analyse myself. When trying to introspect, I used to have many questions and arrive at very few satisfactory answers. With socionics, I feel like I have a stronger grasp on how different aspects of reality interact with me, I feel like I can understand my own reactions much better, and, most importantly, learn and adapt. I also understand other people's motivations to a greater extent, and I can be a better person to them (for some definition of 'better', I guess) by emphasising certain things and de-emphasising others, so that communication between us would flow smoother.