This part is probably tough anywhere, and is certainly tough in the US. Near where I live there are currently discussions related to possibly closing down some existing hospitals, basically because they are losing money and have run out of money. I know someone very well who works in health care administration and hear about how tough it is. Medical insurance in the US is complicated. There are insurers who are slow to pay or who will deny payment after medical care has already been provided (both private and government insurance can cause problems). Negotiating prices is tough. Some patients you pretty much know up front you will lose money leading to the issue of whether you take them so that they can get the care that they need, or if you reject them so that you will not lose enough money to end up going out of business. Pretty much everything about running a hospital is tough in the US. I do not know if it is any easier elsewhere, but I sort of doubt it. It might be less complicated in some other countries, but making money and staying in business is probably still difficult.
As others have mentioned medical school is a graduate program in the US (and in Canada, which is the other country that I know something about). You first need to get a bachelor’s degree while completing premed required classes and getting quite a bit of experience in a medical environment. Many premed students major in a related field such as biology. However, you can major in pretty much anything and complete the premed requirements. As one somewhat extreme example a number of years ago I had robot-assisted surgery (which went well). Before having the surgery I looked up on-line the system that was used. I found a video of a surgeon, who specialized in robot-assisted surgery, who in the video used the robotic surgery system to paint a very small picture of the hospital where he worked. His undergraduate major had been art. He had then gone to medical school and ended up as a surgeon.
This issue of “where to get a bachelor’s” is something that I have discussed with a couple of doctors that I know, and also seen what has occurred for example with the friends of daughters who were premed and went to medical school. If you look at top medical schools, or at other highly ranked graduate programs in medical-related fields, you will find students who came from a wide range of universities. I got my master’s in a very different field, but saw the same thing. The other students in my program had come from a huge range of universities. What you do as an undergraduate student will matter quite a bit more compared to where you do it.
This does indeed happen at a wide range of universities.
As @thumper1 has alluded to, most students who start university thinking “premed” end up doing something else. Some find the premed classes too tough. Some don’t get in anywhere. Many just decide they want to do something else. Some do super well in the tough premed classes, discover that they love lab work, and decide they would rather do research. There are medical related careers that do not involve medical school (although many do involve some form of graduate school), and of course lots of non-medical related careers.
Thus it is a good idea to think about other possible careers.
I have been a strong advocate that if you are serious about medical school, then you need to budget for a full 8 years in university. If you do stick with medical school as the goal, you don’t want your budget to stop you and medical school is very expensive in the US.
You should also look for a school that is a good fit for you. However, what is a good fit for you might be very different from what is a good fit for me or for anyone else. Do you want a large university, or a small liberal arts college? Do you want to be in a big city or a small town? Do you like what I living in the northeast might call real winters? It is probably a good idea to visit a few schools and see what appeals to you. In many cases you can get a guided tour, and in some cases get to sit in on a class and/or talk to a professor in a potential field that is interesting to you.