Don't let people run your well dry
You need to know when you are giving people too much. Most people will just keep taking more and more of your time/energy/money until they just bleed you dry and NOBODY deserves to be taken for granted like that. Don't let people run your well dry and remember you have to drink from it as well. Know when it's time to evict people from your life. Certain people just have to go if you want to be able to flourish.