Plz your Advice: Urgently

Hello NLanders, plz i nid your advice nd say on dis, am young guy of 20yrs of age,nt in skool yet  bt abt 2get into skool,was through with his ssce in 2005, ever since i have been with a computer firm,learning nd nw am a Good,Raw,nd Core computer wizard, but d issue i dat am nt in skool at dis my age. My O'leve result have mess mi up, am a commercial guy, who wanna read economics wen i get into d uni,bt every where i go,i.e offices i go 2 wrk,dey say i should go nd read computer engr,because am good at it.bt dats not d case, d issue i dat next year i will want 2 rite WAEC,4 my o'level 2 bi complete, guy plz help,should take my econs i.e go with d commecial stuff or go 4 d computer engrr stuff,cos nw I.T rules d world nd i wanna be an I.T Manager in life,just I.T is my world,i dream nd think I.T, plz dis is a choice dat can change my life 4 good nd better, i nid your say nd advice, thx