Nikola Tesla faced numerous challenges throughout his career in electrical engineering. Initially, Tesla struggled to secure funding for his revolutionary ideas, including the development of alternating current technology. His vision often clashed with established industrialists, most notably Thomas Edison, leading to fierce competition in the field. Financial mismanagement and lack of business acumen plagued Tesla, resulting in diminished prominence despite his groundbreaking inventions. Additionally, his eccentric personality and controversial ideas often isolated him. Nonetheless, Tesla's relentless perseverance and innovative spirit ultimately established him as a crucial inventor, significantly advancing modern electricity systems.