How can I stop being insecure in my relationship?

This was a huge thing for me as well in the beginning of my current relationship. The only thing you can do is reassure yourself when you're unsure and have faith and trust in the person you're with. Also it helps to tell your partner how you're feeling this way they can help to reassure you as well. It takes time but with hard work and determination it does get easier.

You need to have equal trust. Without trust a relationship will fall so it's best to think positive

By living in the moment and by believing that you're indeed worth of the love that you're receiving in this relationship. The more we trust in our own worth, it reflects in our relationships and how secure we're in them. Also, not to believe the story that our mind tells us all the time.

The best way to stop being insecure, is to allow an open channel of communication with you partner. No matter what your feelings are, it's best that you tell your partner upfront about it without sounding harsh or bitter. It's best to explain what you are feeling and why exactly you feel that way. That would help them understand the reasons for your insecurity and they may be able to work something out to make you feel better.

Relationship stuff can be hard, but just know, if you love your partner it gets easier, there shouldn't be any gaps and/or awkwardness in relationships so just put your faith in him/her and tell what you're feeling. Opening up to your loved one always feels good.

I feel a "quick fix" to this is to take a step back and think "why did this person choose me?" This will not only boost your confidence but it will give you reassurance in what your partner sees in you. Thus, allowing you to be more secure in the relationship.

I think that the person who is in a relationship with you is in that relationship with you for a reason

You need to understand that being insecure isn't what relationships should be about. I'm sure you have a caring partner who understands you. You should tell yourself that you don't need to be insecure around him/her. I'm not quite sure what it is that you're insecure about (about the partner, your looks, yourself) whatever it is, just learn to be free and yourself around your partner and that is what will give you true happiness. Remember nothing is impossible and sharing your insecurities with your partner may help :)

Being insecure (to a certain extent) is normal. Everyone has their fears but if you are incredibly insecure about your relationship, then you should take a step back. Taking a step back and identifying what makes you feel that way is vital for your mental health as well as your relationship. You need to be honest and open with your partner about how you are feeling, then figure out a solution to what you have talked about. Being insecure is a part of life, but not something that you should be constantly worrying about. If you are afraid to talk about it with your partner, then maybe your relationship is abusive and you should get help from someone you trust.

If you are feeling insecure, you need to ask yourself what is it that is making you feel that way. Evaluate the relationship whether its together or alone. You can't change anyone else, but you can work on your feelings and work on whats best for you.