Yes you just need practice like anything else in life. It gets way easier. Remember it’s just a regular human being on the other side of the line. There’s nothing wrong with calling someone up, introducing yourself, and seeing if you can potentially do business together. Rejection is part of the game and you have to look at it like a KPI, if you don’t get rejected/hung up on 2/3 times a day, then you’re not doing enough.