Tips on marrying young

Hello lovely people of this subreddit! Im a 19 yr old student from the Netherlands and I have a question I have been willing to have answered.

I have been together with my girlfriend for 2 amazing years, met each other on the last day of middle school and haven’t stopped seeing each other ever since. She fills up the empty space in my heart, the part i needed to continue on in my life, happily that is. We have even lived together for 6 months until she decided to go back to live with her parents because her mom is sick, understandable of course.

Here’s the thing, I know there are some preconceptions about marrying young. But I was wondering what some people with experience can tell me.

I really want to do this, we are going on vacation in August and I want to propose on that trip. At the time of the actual marriage coming around I would be 20 and she would be 19.

I know its a long one but Im just wondering if people have any form of advice on my plans.

Thank you all❤️