going into investment banking

hi, i missed my firm for maths w finance because i was one mark from an a*. i now am going to leeds for financial mathematics. i really want to go into banking but i am worried that i will be put at a disadvantage becuse i go to leeds. i really need peace of mind that there will be potential places for me if i work really hard, try and get a first, try and land internships etc. i am scared that i have really messed myself up and my future career up. please can anyone give me advice about whether i have a chance of going into banking ?