Can a man be both confident and have manipulative intents?

In the RP community (please correct me if I'm cherrypicking), a lot of the information is contradictory: many advocate complete honesty / vulnerability in terms of thoughts, actions, and words (Models, etc.), yet the core foundation of RP is rooted in its darker side (Dark Triad) – manipulation and deceit to achieve one's goals if need be. To this end, I've lied about my sexual past (truth is n-count = 0) to first potential dates – to which it helped me get significantly further, then to strangers at parties, and now even to some of my close friends. Essentially, during activities which allow for deep emotional bonding (one on one truth games, hot seat, etc.), I never share who I truly am, and that has hurt me when I freeze up due to inexperience and incongruence later on in the night (even next to a girl in her bed). I realized that at first I did all this for fun as a way to practice on women, which initially worked great, but now it has become a part of my identity which is really difficult to shed, especially to close friends. And no one can tell I'm lying – the other benefits of RP (lifting, diet, etc.) have made it seem expected that someone in my position has had many successes.

This has affected my confidence and my frame, as I cannot stand to see myself saying I'm someone who I'm not to impress others. I thought to align my actions with my thoughts: to make truth to what I'm saying, but that is far easier said than done – a feat made harder by the fact that I need to pretend to be someone else in order to maintain my image. No matter how much I fake it, the feeling of incongruence and inexperience can never leave me, and it disgusts me.

Is complete honesty the only solution? In my area of business (IB), social image is just as important as being able to tell others what they want to hear in a way that is beneficial to my goals – essentially, a portion of my personal success is through calculated manipulation, which does not seem to align with good personal mental health or sexual success.