How do some creators in LBP get popular,Recently I've been putting lots of effort into my levels and I found that no matter how much effort you put into it,you get very little plays,no hearts,and no comments.So what tips do you have,I do promote my levels on my Twitter @Lillianna2nite and on here and sometimes I'll get a couple plays but not many.How do I make myself stand out from other creators to get people to play levels ?

When we're talking about getting "popular" or "making yourself a name" in general, knowledge is always a vital aspect in becoming successful with your goals. It doesn't matter how much effort you put into something, in every scenario you will not automatically get rewarded for it through plays, hearts or whatever you seek. You have to educate yourself in the basics of marketing, this even applies to LBP. Firstly, you need to reach an audience before they can reward your efforts.

There is a key-rule for unknown creators. You have to put as much effort into spreading your work as you put into making it. Do this and you will get the attention that you so desperately seek. There are many ways to advertise your work in LBP. You need utilize all the available tools. For example, social media, forums and in-game. I'd say that the latter is your strongest bet. Good luck!

Good question!

Make the advertisment of your level very interesting, share it at many forums. Make the level itself unique. For example you could give the player the ability to control the movement of the world in a platformer, or you could make a minigame in a music gallery. The more creative you are the better.

Nevertheless it's a thing related to luck and time. 

Keep creating!