Seeking expert counseling is a sign of strength. A personal relationship with a caring professional is proven clinically effective.
I believe that I can help you.
Do you know that sertraline is also marketed under the name of Lustral and may be available under that name.
Effexor may not be your first choice because it has many side effects (and some of my colleagues call it "side-effexor").
It may be very similar, but their are other SSRIs that might be more suitable.
Prozac (fluoxetine), Paxil (paroxetine), Luvox (fluvoxamine) and Celexa (citalopram).
You say that you have a short attention span and are easily distracted. Have you always been this way since you were a child?