Every one learns at their own pace. --it might take you a bit longer to learn.
Even tension (loose or tight) is even tension. there is nothing wrong with being a loose knitter, (tight knitting is more of an issue because it can make some techniques more difficult)
If you are having problems getting even tension, watch what you are doing, and learn to resolve.
if your tension is loose (but even) that is OK, (its just your style!)
If your tension is uneven, (a little bit) blocking will help resolve.
if your tension is VERY uneven pay attention to your knitting and see if you can recognize what you are doing that make the tension uneven, (and resolve that!)
there is always part of the knitter that goes into the fabric.
You can admire your friends tension, with out thinking that what you are doing is wrong–because its not!