I have been texting this girl for a couple of days, she seemed interested and we got on really well she told me a load of stuff abou her. So last night i asked her if she would like to go out with me sometime she responded saying "yeah sure something fun though " a couple of messages later she said "im not jumping to conclusions or anything im just letting you know my relationship status is complicated at the moment". What does this mean for me do i still have a chance did i screw up? Any help would be much appreciated guys thanks.

No you didn't mess up at all lol. She's in a relationship... and it's complicated.
Maybe problems, maybe she's on and off with someone.

Either way, it does not matter, you got the date, make it fun and i'm pretty sure there is room for you.

It means she's prefaced hanging out with you as conditional. In all likelihood she's involved with someone already, or is being courted by someone. Either way, it doesn't matter because she's giving you an opportunity. Don't concern yourself with 'why'.

When a person opens up to you, it's a good indication they feel comfort around you, OR simply that they have weak boundaries (as often is the case). Take it in stride, frame it as interest whether its the former or later case.

But all this is just mental masturbation.

Here's what we do know:
1. It appears as though she wants to hangout with you, or is at least open to the idea.
2. She wants to have fun.

Here's your task:
1. Get her out. Don't ask, just simply say you're going to do something and she'd have lots of fun accompanying you. I don't care what it is, you can say you're going to Magic Mountain this weekend and casually give her an invite. If she wants to go with you she'll make the effort. Tell her to bring a change of panties...you know, in case she wets herself on some of the rides;)

2. Put it out of your mind that you've got to win her over. Your objective is to simply take a chick out and have a good time, an awesome time. Nothing more, nothing less. If you make a girl feel good about herself (e.g. by being positive, upbeat, and present minded) and show her a good time, she'll ALWAYS come back for more.

Engage!

Ok thanks for the responses, ive got a pretty good idea of what she would class as "fun" i dont think she will be as easy to please as another i might have to think out of the box but that doesnt matter i am good at that. Im just going to casually invite her out, engage with her and show her a good time.

Bingo

You got it.

The girl is a dramaqueen.
But you've responded well by keeping it casual. Best possible tactic.