How can I stop being insecure in my relationship?

talk to your partner, explain to them what is making you feel this way and try to come to an agreement to fix things

Has your relationship ever given you a reason not to trust it or the other person? If not, then recognize that there are good people in the world and you may have found one. You probably feel insecure from past relationships falling and breaking. Well, don't let your past write your future. You are loved and cherished. You are worth something.

I would say to talk to your significant other. If you're feeling insecure, talk to them about it. I always thought communication was key in relationships.

Don't look for security in your partner, provide security for him / her. The most common reason why we feel insecure in relationships is because we expect to be taken care of too much. When we take responsibility of our partner and act out of a place of security, even If we might not feel like it, the other one feels loved immediately - love is always stronger than any kind of insecurity, and the light you provide by being committed will reflect back on you and make you feel secure.

Wake up every day and focus on one thing you love about yourself instead of focusing on the bad. You will become more confident.

Change the way you think in your relationship, stop letting your insecuritys run your life as this will only destroy you mentally

The first step would be learning to have faith in yourself and your feelings and accepting the fact that everything in life cannot be controlled and imposed. So let it be… go with the flow and take things a little calmly. You cannot impose or control how anybody else chooses to live their life and neither would it be fair. But what you can do is your part …. trust, have faith ,believe and also live your life. I believe that to love yourself you have to learn how to love other people and you will be surprised by the strength and peace that it gives you...and you might end up discovering a part of u that you didn’t know was there .  :)

It depends on where your insecurities come from, the first question that you should be asking yourself is what is making you feel this way. Realizing this and rationalizing it may help.

Well, I think that you can start by trusting your partner and yourself more. I think it's worth noting that you are both are currently involved in a loving relationship and just the sheer fact that you guys are in it together already shows that you're both committed.

I definitely would open up to my partner and express my feelings and concerns. After all, a relationship is about being open and honest. If they can not handle the truth, maybe they are too immature to be in a relationship.