How do I Select something again!!?!

I know, you read this thinking "seriously.. he dosent know how to select a sprite?"

I do, but I went to a different layer, then came back to the main layer, and I couldnt select anything!

Please help!

Could you explain what you mean by going to a different layer and going back to the main layer?

So I have one layer called "things" and another 2 for the background called "Starfield" and "Background". I unchecked "thing" so it would only focus on the background, checked it again, now I cant move anything thats not the background or starfield.

Have you locked the layer?

Thanks I found out it was locked and unlocked it.

But sometimes it still happens, like it locks by its self idk y