Guys any tips one getting cubes?

Question

Sadly I don't have pro so I need cubes to regain hearts and I'm so broke. Look here:
https://www.sololearn.com/post/1788449/?ref=app

Answer 1

Sorry, i don’t understand. I looked at your profile and it says you are on lvl 16 yet you are taking a few intro courses. And now you are sayni g that you keep running out of bits.
This doesn’t add up.
Unless there is some bug here.
It looks like you are trying to get more xp than learning anything.
Not saying it is certainly the case, just how it looks. And as i said it may be a bug.
But if I’m right try to think about what benefits there may be from the heart system.

Answer 2

Zvi the heart system is important for non pro users, and Im on lvl 16 bcs I started this account some time ago and I stopped for a while, I remember finishing a few languages and courses but idk where the certificates went. I came back online after they added a heart system so this stuff is kinda new to me maybe it was a bug but yeah I want ways to keep getting a lot of cubes so I can learn efficiently and effectively without having to take breaks for 24 hrs just because I made 5 mistakes. Thank you for the help!