hi,

bmm stands for bachelor of media management and I think you have chosen the right course since you wants to become a travel host. however to become a host in reputed channels like discovery or travel xp you need to have a good communication skills,  in some of the recruitment you may have to learn about some foreign language and lastly you have to make a portfolio of your work, see the host of the reputed channels are expert to define any of the things or situation and have good photography and content creation knowledge. so to gain some experience in travel management you may work for some travel agency as content creator. or shoot some videos and make a channel on youtube on relevant topics. some times degree does not matter to get a job , whats matter the most is how much skill you have and how you fit for the job.