You wish to pursue higher education but the recognition of your secondary education diploma (CESS) does not grant you access to the studies of your choice?
You have the possibility to pass the DAES exams (“Diplôme d’Aptitude à accéder à l’Enseignement Supérieur”), in front of the jury of the Fédération Wallonie-Bruxelles. The DAES gives you access to (nearly) all higher studies programmes in the Fédération Wallonie-Bruxelles.
In the Flemish Community, if the recognition of your secondary education diploma (DSO) does not give you access to the higher education, you can contact directly the establishment of your choice. They will assess the situation and may suggest a preparatory year.