What are some "obstacles", "detours" or "rest stops" that divert people from reaching their goals in the journey through life?

There are a lot.

Explanation:

Fear of future - Fear of not being able to do it even if trying so hard.

Failure - A lot of people want to quit after failing for the first time.

Focusing on the end result - Fearing what if something goes not right and quitting.

Fear of judgement - Fear of being judged for who you are and your career, likes and needs.

Fear of getting down - Fear of someone will stop you and say you can't do it.

In life, almost all difficulties may be considered 'speed bumps' or some other similar word from reaching their own goals.

There are, in my opinion, three main types of obstacles, which are;

-Physical

-Mental/Emotional

-Outside (AKA Obstacles out of your control)

There are countless possible obstacles for each category, but to name a few for each;

-Physical difficulties may include an injury that would prevent an activity-based to be achieved or a disease that affects your inability to move towards a goal.

-Mental/Emotional goals can include disorders, diseases, or certain negative events occurring that can hinder your ability to function normally.

-Outside obstacles can be anything from weather cancelling an event you wanted to complete to a person having to opt out of something you needed them to partake in.

In conclusion, there are countless stops that resist against human goals.