Illustration is not a career met with an easy point of entry. You don’t graduate and get a job at a company like you may as an accountant. Be prepared to have to pave your own way and put in the work. I spent 4-5 years putting in 18 hour days because I knew I was working from a deficit (not having practiced drawing my whole life I had a lot of catching up to do) but it worked. Drawing is a skill learned, not naturally gifted. Practice is the only way to get good.