Up to you of course.  Your time is your time.  That being said getting through these issues is what leads to great growth as a developer. 

I can't quite tell from your message but it sounds like you are dealing with a collider issue.  You want to move through a block but also not have the character fall through a level.  Colliders are used is almost every game but they are a difficult thing to master.

The first thing that comes to mind is to check what Layers each item is on.   Here is a small page from Unity that explains Layer based collision detection.  Let me know if it helps or if I can help in any other way https://docs.unity3d.com/Manual/LayerBasedCollision.html