How long does it take to become a regular doctor and then a surgeon?

After 12 years of basic education, you have 4 years for your bachelor's degree, and 4 more years of med school. After that, you have 1-2 years of residency. For a surgeon, depending on the type of surgeon, you can add another 3-5 years.

After med school the shortest residency is 2 years for Family Medicine and the longest is 7 years for neurosurgery. General Surgeons usually do 4 years of residency; other surgeons usually 5 General Internists generally do 4 years ; subspecialists ( respirology haematology, gastroenterology etc.) usually do 5. Similarly general pediatricians do 4; Pediatric subspecialists 5 Psychiatrists usually do 4

You need a four year Bachelor's degree, four years of medical school to get the basic MD degree. However, you then need at least 2 years of residency or more depending on specialty. For a surgeon, you should estimate at least 5 years post medical school. Even then you aren't "done", as medical doctors need to attend continuing education and conferences to keep their knowledge current and their licenses valid. 25 is a very optimistic estimate. Even if you chose family medicine, one of the shorter residencies, you won't be able to practice on your own without 11 years of post high school education. That puts you closer to 30. Even then, no matter what money you make you'll be in a huge amount of debt from medical school.