confident before a relationship, insecure when starting one?

im a libra girl (sun and moon libra, rising pisces) and im pretty confident and kinda vain but i obviously do have my insecurities i just try not to show them to people but i noticed when i really start to like a guy even if im a little out of his league (i know, cocky thing to say but it can be really true) and hes not exactly what all girls go for, i tend to get insecure and think im not good enough and that he will find someone better? does anyone else feel like that?

Yes, I think it's normal to feel this way. I think EVERYONE has gone through this one time or another For me it has to do with fear of rejection and need for validation. You need to figure out why you feel unworthy and start from there. For me the not good enough stems from thinking I'm not fun enough or interesting enough.

"For me it has to do with fear of rejection and need for validation."

I agree with xtina. Also with starlover.

at the beginning everything is 1000% complicated.
we don't know if they are serious.
we don't know if we waste precious time we could be still availabe to see luckily the right one.
we don't know if our flaws can be compromised.
we don't know if they are so low value that they'd sleep with the next girl from the street cause we had a discussion last night.
AND we are naive enough to get guilt feeling if that thing fails.

Once we accept (sht happens and) all the determinant factors are stronger than our own flaws or strengths, we can

- be relaxed and
- do our best and
- keep hope and
- enjoy the moment and
- just wait that time shows if it is the right relationship this time.

You need to develope a higher intelligence than the street intelligence. In the street intelligence women get blamed for every damn reason.

Example:
if a man leaves a beautiful girl for a rich girl. A rich girl for a funny girl. A funny girl for a motherly caring girl. A caring girl for a high maintenance girl. and this chain does not stop...
if so,
it is yet not that girl's fault. There cannot be a perfect girl/human.

People change 1-2-3-x times in life. Their needs change. It happens to you too. So be ready for changes. Don't feel flawful cause things change. Be yourself. Everybody else is taken.

I agree with dwelling 100%

It doesn't matter how pretty or smart you are. You can be the sweetest peach but there will always be someone out there who does not like peaches. Realize that if the case is that they don't like you it has more to do with their preference rather than who you are as a person. So long as you are good enough for yourself meaning you think you are good enough it doesn't matter if you are for anyone else.

Start with finding worth in yourself that does not revolve around other people but who you are as a person. But like dwelling said ppl change all the time including yourself just be prepared for it.