With my Glock I'll send it to the manufacturer or a Glock-certified armorer. I simply don't trust myself beyond a basic field strip. I have other guns that will get to be carried in the meantime.
Take a baby step and try detail stripping the slide at least. If you can field strip a Glock you have the "skills" to detail strip the slide. For instance, enough crud gets into the striker channel even if you keep that area dry. Its nice to be able to clean it out yourself. You'll kick yourself why you didn't do it sooner.