How do I keep myself from getting to attached to people?

Don't trust people you don't know too well, slowly open up to them but be assured to becareful what you say before you fully know them

In general, I don't think there's any way to not get attached to people. I have this same issue, and right now what I'm trying to do is just go with the flow, be accepting of my feelings whatever they are, rather than push away from people.

Learn how to prioritise and also don't base your happiness towards others.Love yourself first so you would know what to deserve.

Remember that other people are meant to compliment you, not complete you. You are your own person and other people are like garnish, meant to bring out the best in you. Don't live solely for someone else.

When we cannot fulfil our own needs, we tend to depend on others to fulfil these needs for us. Examples of these needs may include needs for validation or a need to be "cured" of loneliness. When you feel negative feelings associated with these expectations of your friends that they do not achieve, perhaps it would prove beneficial to record your thoughts and feelings, recognise them (don't ignore them!), and analyse why you might feel this way, and if there were any characteristic triggers that continually made you develop these feelings. Communication with these people on setting up healthy boundaries and clarifying what your own boundaries are can help you evaluate and change how you relate to people. Check out 7cup's self-help resources on Boundaries and Managing Emotions, hopefully it would you give you new insights!

Some attachment to people is good for you, but in order to not get too attached, you want to set healthy boundaries. It's important to know what is okay for people to say to you, do to you, and for you to know what other people expect of you, as well. Be careful of getting romantically involved with someone that says they aren't interested. Even if their actions say otherwise, there's a reason they are keeping you at arm's length. It's not about you, but it could hurt you tremendously if you give too much of yourself too soon.

While getting attached to a particular being is not normally harmful, distance has proven to be the most complete form of avoidance.

the best way to keep from getting too attached is to do reality checks once in a while, whenever you feel you may be dependent on someone realize all of the things you do not need that person for and remind yourself that you can live without that person, while it may hurt, you physically will be fine without them, just as you were before you met them

Don't make yourself addicted to someone. Always have Plan B so that nothing can get on you. Always be complected.

I found I got attached to people most when I wasn't happy with myself, or I couldn't make myself happy. If you find yourself relying on the people around you to make you happy, of course you'd get attached. Spend some time doing things you like and things that make you happy.