Generally, there are two broad factors that potentially mess things up. Spending long periods with each other (esspecially in a casual setting) and finances. I’d try and think over how well you know her (and she knows you), to try and make sure it won’t be an issue before you commit to it. For example, have you gone on long trips together or spent more than just a weekend together? If you haven’t, maybe try and spend more time together and learn more about each other. If you have, are you confident that you’ll be comfortable spending much more time around her. As for finances, there’s obviously only so much you can learn, but do your general stances align? Have you fought about stuff like that before?

Ultimately, you both should have enough information about the other person to feel comfortable with the idea, and not feel like you’re going in blind. This is a commitment, so you should be well informed before taking action, and prehaps have fallbacks if you feel theres any chance things don’t work out. If you’re asking strangers on the internet, its not a good sign, but ultimately you’re the only one who has the information needed to judge.