Why isn't the definitive answer to the problem of evil free will?

I'm a new Christian and still getting into it all.

I believe in God, to the point that I like to say that I know God exists. There is no part of me that can even start to comprehend that everything we see around us is here without intention. But I have not been religious. I thought the bible was a fairytale.

But I had my own "road to damascus" movement last year and I now believe in the Christian God.

The God I "believed" in before that just created the universe didn't have to care about good and evil, we were all just fish in his aquarium.

But now I believe in a personal God, in Christ, that cares about me as a person. And then the objection of the problem of evil is there.

If there is an all powerful all good God, why doesn't he prevent evil?

When it comes to moral evil, I think you can 100% say that it's because of free will. We humans can do evil because we are allowed to make our own decisions. We are not programmed robots with limits.

But then the next objection is, okay but then what about children that gets cancer? What about tsunamis?

And when I think about this myself, why can't free will be used again? Because I think we all think that "nature" is alive. Like we know a flower can be alive or dead, we know a tree can be alive or dead. Even though we don't think nature has a mind of it own to make decisions, but why can't it be that God just allowed nature to exist with everything that comes with it. Like diseases and disasters.

Then we get to live in a real world, with real consequences, when we can support each other through hard times.

If God removed all the bad things that could happen, that to me would be like bowling with the rails up that prevent gutter bowls. Sure it will not feel as bad because we can't get a gutter bowl, but a strike wouldn't feel as good either if the bowl just bounces of the rail that prevents it from going into the gutter.

Writing this down I feel like this maybe isn't as airtight as I thought when I started, but I'm still interested to hear what you have to say.