Hi, haleylaurel and welcome to pc! I have a borderline personality disorder too. There's a lot of misunderstanding about BPD so don't believe everything you read. Then there are the stereotypes.

Do you have a therapist you can see on a regular basis?

Here's a general overview on BPD from pc.

"The main feature of borderline personality disorder (BPD) is a pervasive pattern of instability in interpersonal relationships, self-image and emotions. People with borderline personality disorder are also usually very impulsive, oftentimes demonstrating self-injurious behaviors (risky sexual behaviors, cutting, suicide attempts).

Borderline personality disorder occurs in most by early adulthood. The unstable pattern of interacting with others has persisted for years and is usually closely related to the person’s self-image and early social interactions. The pattern is present in a variety of settings (e.g., not just at work or home) and often is accompanied by a similar lability (fluctuating back and forth, sometimes in a quick manner) in a person’s emotions and feelings. These individuals are very sensitive to environmental circumstances. The perception of impending separation or rejection, or the loss of external structure, can lead to profound changes in self-image, affect, cognition, and behavior. They experience intense abandonment fears and inappropriate anger even when faced with a realistic time-limited separation or when there are unavoidable changes in plans (e.g., sudden despair in reaction to a clinician’s announcing the end of the hour; panic or fury when someone important to them is just a few minutes late or must cancel an appointment). They may believe that this “abandonment” implies they are “bad.” These abandonment fears are related to an intolerance of being alone and a need to have other people with them. Relationships and the person’s emotion may often be characterized as being shallow. "

Borderline Personality Disorder Symptoms | Psych Central

All of this doesn't apply to every single person who has BPD. It can be very different from person to person like any other mental or physical health issue.

The best advice I can give is to be in therapy and or maybe even in group therapy. There are free groups in a lot of areas. Another piece of advice is to try and find family members who really understand. If they don't understand but love you, they need to be willing to educate themselves by at least reading material and listening to you.

I hope this helps.