If you can't manage a little, you won't get a lot.

Careless with a few dollars?

You say “I will be more careful when I have more dollars”.

But you will never get more dollars because you can’t manage a few well.

Careless with a couple relationships.  You’ll never have more of them, because you’re careless with the few and they ended.

Careless with an opportunity?  You aren’t likely to get more of them.

If we care for what we have well, we will get more.