biscuit7 once bubbled... ....I don't have a firm grip on how I dive, what I want to dive, or what I want to do in the future with diving. It makes sense to me to get some of that straight before I pursue any more formal training.
I don't know what training you've already received. I don't know anything about your buoyancy and trim skills. I do know, however, that many new divers have trouble with buoyancy and trim. It appears to me that this is so because buoyancy and trim are not emphasized in most basic open water training programs by most instructors. Most new divers are told, or decide, that they just have to learn this on their own by trial and error. After a period of trial and error, most divers think they have developed pretty good bouyancy and trim skills, but really haven't mastered it. You can certainly learn by trial and error. Another way to learn is by being taught how to have good buoyancy and trim by people who know already know how and know how to teach it.
Learn to be a better diver however works best for you. If figuring it out on your own is the way you have to do it, then God bless you and good luck. If you want help, find a good teacher. There are plenty, but they are hard to find. No one agency has all the good teachers.
From what I know, GUE makes a special effort to teach good buoyancy and trim skills, as part of a fundamental set of skills that it believes all divers
should have, and that any diver trying more difficult dives
must have. GUE also goes through a great deal of time, effort and training to ensure that its instructors know and can teach these skills. GUE is different from other agencies in its emphasis on teaching and learning effective basic dive skills.
So, if you want to get better with your skills, you can maybe figure it out on your own if you take enough time and don't get hurt in the process. If you're willing to learn from somebody else instead of figuring it out by yourself, then taking a class from GUE is going to help you. You can also learn exactly the same skills from other instructors from other agencies, but it may not be easy to find them, because most other agencies don't make this an important issue with their instructors the way GUE does.
I think there are several instructors who haunt this board that aren't affiliated with GUE that know and teach this stuff very effectively. If the DIR label upsets you, maybe you could hook up with them.