What are some struggles in becoming a veterinarian?

The main struggle is getting onto the degree in the first place; it is very competitive. The best way to stand out is to have done lots of extra curricular activities relating to animals. Also having a wide variety of experience helps e.g. if you can get experience with exotics such as reptiles as well as everyday cats and dogs. Make sure you're prepared for any interviews, it's a good idea to research any current veterinary issues in the news in case you're asked about them. Also when you apply make sure your personal statement makes you stand out - tell them about unusual cases you have seen. Maybe also include a little scientific detail e.g. if you describe an unusual surgery or disease you've seen, mention an extra fact about it such as a cause or why the surgery might improve the situation.