I can’t remember the number of times I’ve had to provide references since I left high school. If I want someone with status to believe in me, it’s not enough to be able to say that I’m a good person, and to describe the good things I’ve done. I need to prove it by getting someone who’s more good (or at least, more powerful) than me to say so as well.
For the indefinite future, your mission is to collect evidence of your goodness. If you’re in Year 13, get a principal’s testimonial before you leave and ask your favourite teacher to back you up in writing, too. If you’re at uni already, remember to ask your favourite lecturer. If you think you’ve made a good impression in your job, ask your boss before you leave.
It’s a little awkward now, but you’ll thank yourself in the future. No one ever made it to the top on their own, so make the most of the people who you can help you get there. Don’t worry, they’ll understand; anyone who’s anywhere will have gotten there with references.