I am moving to Brisbane next feb and becuase i do not have a house of my own in the UK it is not worth me using a removal firm or getting a container. Does anyone know if i get a larger baggage allowance as i am moving to Australia or does any one know

the best way to send excess baggage.
Any advice would be great. When i moved back to the UK when i was 20 i only had a suitcase as i moved back in with family but obviously now that i am 26 i have considerably more lol.
PS if anyone considers moving back to the UK....DONT! It was nice being back for a year or so after that i came to realise why my parents moved in the first place lol!