How to make freelancing better?

Have you ever thought about what you like in freelancing and what not?
Are there any things that enrage you?
And those from whom you are delighted?

I'm pissed:
- Customers who do not respect my work;
- Performers with thousands of excuses that suddenly disappear at the right time.

I like:
- that I can sleep exactly as much as I want;
- that I can travel without stopping work.
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What do you think can really be improved?