How do I get over feeling that everyone is going to leave me?

Acceptance. It's a very long process, I believe no one really get over on this part. It's just we learn to live and to accept that nothing is permanent on this world because life is a continuous process. To have something to believe in, makes it easier to cope on this emotions.

Surround yourself with people that accept you, that accept that you have insecurities, but who also try to make it better. Don't be afraid to talk to a therapist, or ask for ( if needed) medication. Keep a journal, and record happy memories.

From my experience, people often fill in each others words. They assume that they know what other people think or feel. We are often wrong, and don't actually know how loved we are. Just because you cannot always see it, doesn't mean it isn't there. There is always someone who cares for you.

Start by looking for evidence. Look around for people who have been with you. Understand that not everyone will be there with you till the end but that doesn't make the times they were there for you any less important. It's okay when people leave. Emphasize on the beautiful time you spent when they were there for you. The only person who will be there for you throughout is yourself. And that is completely okay.

Spend some time building up self-confidence. Feelings of abandonment may come from feelings of inadequacy after all. Acknowledge your strengths, and don't push aside your weaknesses. Accept your flaws for what they are, you don't need to try to be a perfect person, and embrace yourself for your pros and give yourself credit for those traits.

Low self esteem, low self-love creates the anxiety in us that other people do not consider it worthwhile staying with us and will leave us soon or later. Seeing our good sides and learning to appreciate how we are will give us a feeling of "value" and reduce the fear that everybody is going to leave us.

If you are afraid of someone leaving it could help reminding yourself that the people that are truly there for you will never leave. It is important to let the people who want to go, go. This makes the relationships that do work all the more special.

Well usually when you have that feeling, its because you have experience people are gonna leave you. So you may have been in in healthy relationships beforehand, which can cause emotional scarring. The ultimate thing to realize is there are 7.5 billion people in the world, not all are gonna be like that. Its best to make friend and allow them to slowly earn your trust, to find better relationship.

Accept that even if this does happen, you'll survive. You're a strong person and can adapt to new situations, I'm sure, so even in the worst case scenario you'd be able to move on and rebuild a positive life for yourself. When you've accepted this, you're more able to step back and take an objective look at the situation. Why are you feeling like this? Has something happened, or is it just paranoia? When you're looking objectively, you'll be able to either dismiss that paranoia or work on the issues causing these feelings.

The way that I get over this feeling is by finding someone who I really care about and trust (it can even be an animal!) and just talking with them. Being around people or things that I enjoy/care about always helps.