Troncat, you are only 18 years old. Why do you feel the need to have a boyfriend at such a young age? If I were you, I would just go to the bear events and make new friends and see how that goes first. I’m not sure what your legal drinking age is in Australia, however I know that some of our bear and cubs events (here in the states) take place in bars, and you have to be at least 21 years old (our legal drinking age in the states) in order to enter a bar in most places.
I’m not sure how it is there in Australia, however here in the states, “usually” the bear events are “bear AND cub” events that are open to bears, cubs, and their admirers. So if you were here, you could get in as an “admirer”. I’m 49 years old and based on my experiences with the bear community here in Los Angeles, it seems that bears generally like to be with other bears and cubs, yet there are bears and cubs that seek non-bear and non-cubs for friendship, sex, and relationships. With you just being 18 years old, don't be surprised if it takes you a long time to find a bear boyfriend, because I think a lot of older guys will not take you seriously due to your young age and many will question your boyfriend and relationship experience. Yet if you find a bear around your own age, I'm sure finding a boyfriend will be much easier.
Yet you could try your luck with online dating, basically stating that you are a bear and cub “admirer’, seeking love and a relationship and see how that works out. Though you may not care about the age difference, I am sure that there are plenty of men that will care, IF there is a 20+ age difference. Then there are plenty older men out there that only like men with a 20+ age difference, how seek younger men.
However if I were you, I would just take my time to see what my new adult life has to offer, yet I would not be looking for a boyfriend at such a young age. I’m not saying that you should go out and party all the time and be promiscuous or anything, yet just take your time and enjoy your new adult life for awhile. There is plenty of time to find a boyfriend, love, and a relationship. If I were you, I would concentrate on going to college and concentrate on my career. Then once I got my career going and on solid ground, then I would look for a boyfriend. Yet that is just me.
I hope this information helps. Good luck to you.
Wilson