I feel your pain. Real estate is about your time, knowledge, or money and figuring out how to leverage what you do have and find a team to help you with what you don't have. If you have time and knowledge but no money, that's often where the Do It Yourselfer falls on that spectrum. The problem, especially when you're new, is it's easy to overestimate your knowledge and the time it's going to require. It may seem like you saved money, but did you really?
It's also important to take stock of what your primary money-making skill is. Are you better served to focus on your primary money-making venture, studying/practicing medicine, or do you think you're going to make up for that lost focus with the money you saved doing it yourself?
We are all trying to generate other streams of income in the most passive way possible, but often we lose sight of the better use of our earning time because we are excited about real estate investing and we hear all these great stories about people doing themselves. Every investor is in a different position.