Not sure if your self-talk is positive or negative? Some common forms of negative self-talk include:

Filtering. You magnify the negative aspects of a situation and filter out all the positive ones. For example, you had a great day at work. You completed your tasks ahead of time and were complimented for doing a speedy and thorough job. That evening, you focus only on your plan to do even more tasks and forget about the compliments you received.
Personalizing. When something bad occurs, you automatically blame yourself. For example, you hear that an evening out with friends is canceled, and you assume that the change in plans is because no one wanted to be around you.
Catastrophizing. You automatically anticipate the worst without facts that the worse will happen. The drive-through coffee shop gets your order wrong, and then you think that the rest of your day will be a disaster.
Blaming. You try to say someone else is responsible for what happened to you instead of yourself. You avoid being responsible for your thoughts and feelings.
Saying you "should" do something. You think of all the things you think you should do and blame yourself for not doing them.
Magnifying. You make a big deal out of minor problems.
Perfectionism. Keeping impossible standards and trying to be more perfect sets yourself up for failure.
Polarizing. You see things only as either good or bad. There is no middle ground.