There are two main theories of aiming in traditional archery: instinctive and point-of-arrow. You can try both types, and see which one you like the best. Fred Asbell, in the book Instinctive Shooting, is one of the main proponents of the instinctive style, and Byron Ferguson, in the book Become the Arrow, is one of the main proponents of gap shooting, which uses the point of the arrow to aim.
While bow sights can be used on traditional bows, there are disadvantages, including not being able to cant the bow and not being allowed in many traditional archery competitions. I would encourage you to try the instinctive method and the gap method and see if you feel comfortable with either of those before putting bow sights on a traditional bow.
If you decide you like the instinctive method, it requires shooting a lot of arrows at the distances you plan to use it. Most of us shoot several times a week, if not every day. If you like shooting a lot of arrows, if it helps relieve stress from work or whatever and you have a convenient place to do it, that's great. If you find shooting a lot of arrows to be a chore, then you might want to use one of the point-of-arrow sighting methods.