Thank you!
Haha, yes sometimes it's quite difficult and can be exhausting but It's the only way to create the things which come into your mind. Actually I didn't watched a brackeys tutorial for the lightning(had no time haha). I've just used a normal point & directional light (decreased the position- z axis and added to the player) in combination with a Sprite - diffuse material (added on tilemap, background, character). But I would recommend to avoid this and use proper 2d lightning, because I had many bugs with the rendering. :)