Not full time freelancer, but I made many and still make some those includes -Not charging enough. -Spending less time to find client -Not specifying Time re

Not full time freelancer, but I made many and still make some those includes -Not charging enough. -Spending less time to find client -Not specifying Time required to complete task -I have micro-experience of many platform and business specific task, but despite knowing its is rare to find such developer I always forget to charge enough. -Taking fixed price for project with ambiguous scope like firing on own leg. -Not to know when to refuse to do something and many more.