One thing I've found myself recalling is the show don't tell advise. I've noticed a lot of instances where I've simply told how the main character is feeling instead of showing it. One of the ways I'm correcting this is by turning the sentence from the narrator's point of view, into a piece of internal thought from the character's point of view. For example:
She didn’t want to make friends, but at that point, she felt that it would have been wrong to push him away.
Has now become:
I can’t be your friend, she thought. But I can’t push you away now. It would be wrong.
But my worry is that I'm going to delve into my character's thoughts too often. I haven't gotten to the point where she's having an all-out internal monologue; I'm avoiding anything THAT full-on. So my question is, what do all of you out there think of using internal thought when writing?
Being somebody who, so far, as written mostly in past tense and third person, the use of internal thought gives me a chance to slip into the characters 'there and now' feelings. I personally think it can be useful if done properly, but what do you think?