I mean, I have destroyed 2 enemy towers on my lane. I'm playing Mid-Malzahar, and I get that my objective really fast (sometimes my allieds destroyed none towers yet!).

  Yes, I know about the danger about pushing the lane and so, but the fact is that I'm very good in get that objective.

In the end, I don't know what I do. I think really dangerous trying beat the 3rd tower alone. I think about help another lanes, but I'm worried about my lane goes unprotected. And an AP hero as Malzahar isn't sooo good as jungler.

What the best can I do when I won my lane so early?

I mean, I have destroyed 2 enemy towers on my lane. I'm playing Mid-Malzahar, and I get those objectives really fast (sometimes my team mates haven't destroyed any towers yet!). Yes, I know about the danger about pushing the lane and so, but the fact is that I'm very good in killing the towers.

In the end, I don't know what I do to follow up. Its really dangerous trying beat the 3rd tower alone. I think about helping another lanes, but I'm worried that my lane will go unprotected. And an AP hero as Malzahar isn't sooo good as jungler.

What the best can I do when I won my lane so early?