So what I should go for a business program then or social science then change program when I arrive

I’m new here but need advice…..never been to the university but been working and decided to go back to school to build up my career….I’ve applied to Canada before and was refused due to no travel history and purpose of travel which no tuition was paid….that was 2014 but now I’m doing well financially and also will be sponsored by my company but I work as marketer but with the money for 10 years….I intend to study criminology so I’ve applied to 2 universities for same program but about to apply for a diploma in a college in Quebec…tuition fee is something I can afford coz this time I really need to pursue my dream as a crime analyst but my work experience as a marketer will it push through for me on my SOPi need genuine heart to heart response plus I have a child also but not going with my child for now