To add though, lying to get away with things, if it affects others in a negative way or if its hurting people or would hurt people, that it not good. Do you know why you are lying? Do you like lying? You may seem to have some tendencies that is not good behavior, but since you worry I dont think you are a sociopath.

Could you use another person for your own benefit without feeling bad about it and have no regret? If you feel not bad at all and feel entitled to do what you want to other, then it might be a good idea to seek a therapist.

Just to add, a narcissist or sociopath rarely , if ever, seek treatment. They dont even think there is something wrong with them.