Fat and ugly squares!

Hi, i’m new to blender. And when i try to model, my models turn into ugly fat boxxy character, i’ve tried to smoothen them, but they still look abit unnatural

Any tips or trick you could pass on to me?

without more information, it’s hard to say. perhaps you could provide a screenshot.

As Modron said you really need to add a image so we can see what we can suggest.

There are a number of tools such as;

W - Smooth

Edge Slide to even polygons out

Scale on normals to pull edges out to round things off.

you did say you are new, have you applied a subsurface modifier?