I travelled a lot and figured out very soon I should never ever contract dept or have a strong commitment (house, children, etc) too soon. I'm still amazed so many people regret doing that, being young don't mean being dumb, why did you do that?

Anyway, my advice would be:

Start meditation sooner.

I would give myself many other advices about risks, people and self-acceptance, but I would have not being able to listen to them at that time.

That's the problem with advices, you must be in a place in your life where you can actually use them.

But I would be able to meditate and figure it out, since that's how it happened.

Replace that with any tool that helped you develop yourself.

If you don't have such a tool, find one quickly that suit you.

Oh, and yes, travelling help, so do so. But you'll reach a limit in what it brings to the table. You need to find a better tool on the long run. Just like money helps, but has a max amount after which it won't make you happier.