Hi, so I'm having problem with being authentic. I'm altering my personalities and perspectives depending on the girl I'm trying to date.

For example, if she says she likes cars, then I would say "me too" by thinking I have greater chances with her.

Or another example, when Im hanging out with a group of people and they talk about some stuff, I'm afraid of saying my perspective. In that case I would just be silent or agree with them (even if I dont).

I know its really bad but I want to change it.

Also, how do I stop being needy all the time. Is there any mentality to improve my non neediness? Thanks!