4 Thoughts that Come to My Mind About Learning How To Swim at 23

I will be taking my first swimming lessons in a couple of weeks and this is how I feel
  1. Embarrassed
    I'm a 23 year old woman that can't save my life when in water
  2. Nervous
    I'm very self cooncious about how I will perform while learning
  3. Insecure
    Will I tense up? Will my body stiffen?
  4. Instructor
    Will they have patience? Will it be a woman?