awnser:
1, 2, and 4
it's not 3 because to not go against your personal values to please others, is basically saying I won't let you cross my boundaries. It's a healthy way to go about things, otherwise you would be stepped all over.
1. Is not healthy because if you never trust anyone, you will continue to build up emotions that you can't let out. It can lead to depression, anxiety, etc.
2. Is not healthy because if you trust everyone they can abuse you, because they know you will continue to trust them. If they continue to abuse you, and you continue to trust them you might start to think that's normal behavior.
4. Is not healthy because somone will walk all over you that way. It can make you feel insignificant overtime. It can make it hard to speak up later on in life, for fear of what everyone else thinks.