Take your time
It took me a long time to find ways of working effectively. There is immense pressure on our time throughout our careers. Rushing things frequently leads to them not being done correctly, generating anxiety and the need to do them again.
Patients quickly identify and resent a doctor who is rushing. If I begin to think that it's time to rush, I have to remind myself that I should probably be taking things more slowly.
Have patience with patients
Looking after patients can be difficult but is immensely fulfilling. Developing good clinical skills depends on knowing how to encourage patients to provide the critical information you require, and on being comfortable with examining them, which was much harder than I expected. It is also important to examine lots of patients to learn the full spectrum of normality.
Patients may seem to cause frustration but usually they aren't at fault - it's more likely that one's own lack of skill or patience is to blame. Spend as much time as you can with patients as they will provide much of the information that you need. If you find that you don't enjoy interacting with patients then don't worry. There are still lots of options open to you, but it is better to find out sooner rather than later.