This first few sentences of this article describe almost exactly how I've been feeling lately:
For a long time, I resisted to-do lists. I wanted the flexibility. I felt that if I kept a list, it would tie me down to a particular set of tasks. Gradually, though, I came around. The busier my work life became, the more crucial it was to have some sort of running agenda on hand.
It was embarrassing after a few times when I kept forgetting important tasks, and that pushed me towards using a todo list manager at work.
Being a developer who works almost exclusively in a terminal, I settled for using TaskWarrior (TW). I can't recommend it enough for people who spend most of their time in a CLI. I tried a bunch of different options before I found TW, and my biggest problem with anything else was the added friction and mental context switch involved in switching to another app to add a task.
Now I'm looking for something more, a task manager that works everywhere. Especially for longer projects and goals, something I can use for my personal life. While TW is great for the CLI, it lacks apps for the desktop and mobile (OS X and iOS). I've settled to using Wunderlist for now, which is the best option I could find for myself, but I'd love something that works as well as TW for the desktop and mobile, which for me is just entering tasks as a single line of text and having meta data like due date, project, categorization, etc picked out automatically (which Wunderlist does for dates but not categorization).
And one very important thing I've felt a couple of days ago when I moved to Wunderlist for my personal stuff is that at least for me it makes me feel more relaxed as well. I had a bad day a while back where I was in a panic because I had a lot of things to do personally and I didn't seem to be getting anywhere with any of those tasks. I sat down for about 30 minutes and just created tasks for everything. Since then I feel a lot easier. While I may not have made any progress on the tasks, just knowing they are written down somehow makes me feel better.