Hi, I always need to approve all the transaction made through my store on commerce. Is that something that is automatically enabled from the settings or what? My customers can't receive their orders until I approve them and I'm not 24/7 online to approve each one. Is there any way around that?

Create an Anti-Fraud Rule with "Hold for manual approval" as the action to take and leave all of the settings on the defaults. This should accomplish what you are after.