Determine what your goals are and than try and determine which aiming techinique or techinques will suit you best.
Do you want to hunt? Do you want to compete? What type of archery competions do you want to get involved in? Do you want to be able to hit moving targets? Do you want to be involved in a few of those things or do you want to do it all?
Forget about what's Trad and what's not.
Instinctive Aiming - is more suited for hunting where the shots are generally close, the target is moving and/or there is a limited amount of time to get the shot off. It is the HARDEST aiming method to master to achieve consistant accuracy with especially under most archery competition situations. A person with exceptional hand and eye coordination can excel with this aiming style, whereas others may never become proficient with it.
Gap Aiming - is more of an all around style of aiming that can be used very effectively in both competition and hunting. It is easier to master in the begining when compared to instinctive aiming because the archer is consciously aware of the aiming process and can make more precise adjustments from shot to shot in order to put the arrow into the bullseye. It is also more suited for a variety of distances between 0yrds. and the archer's point on distance. When a gap shooter has mastered his techinique to the point it almost becomes second nature, it can be executed about as fast as instinctive aiming can. Some instinctive shots started out gap aiming. When the archer has mastered their gaps to the point they no longer are consciously making the aiming adjustments, it no longer is gap aiming...but has evolved into instinctive aiming.
Point of Aim - is great for competition, especially when the targets are further away and/or closer to the archer's point on distance. Doesn't work very well with moving targets and generally takes more time to get the shot off than the other aiming styles. An archer can use it for hunting but it isn't as practical in that situation as the others can be.
Those are some basic descriptions of the more common barebow aiming techiniques. There are other variations of those such as string walking, face walking, split vision, etc. etc.
If you are interested in more just let us know.
As Terry already mentioned...your style will evolve just as most of ours did to some extent or another. I personally have learned to shoot instinctively, gap and point of aim so I can use whatever aiming techinique that is more suited for that particular shot.
Ray