Hi js! I do not think practicing your speech and finding new ways to approach your stutter is obsessive. It is a condition that we carry every day of our lives so it makes sense to give it attention. Like any hobby or learning opportunity, my advice is to pace yourself and take breaks. It's great to record yourself, talk to a mirror, make practice phone calls but you might not need to do it every day. Just like in most of the world, we get weekends off from learning or working. The brain needs time off from an activity to rewire, condition, and heal. So while it's awesome to practice linguistics and showing your stutter who's boss, it is also beneficial to give yourself days off. Of course that doesn't mean you have to stop talking for entire days, but you can skip devoting time to it for a day or two. Let your talking come naturally then. Or even just talk out loud in the shower (not necessarily practicing words or letters you know you stutter on but just talking out loud). It's only obsessive behavior when you begin to feel exhausted from it. Otherwise, you're just dedicated to doing the best that you can do. And that's all you need to shoot for every day!